Project tags associated with a template project should be copied to new projects based on template

Summary

When creating a project from a template project, the project tags (not git tags) are not copied to the project created based on the template.

Steps to reproduce

1. Create group templates
2. Create project my-template-project under templates group.
3. Configure tag demo-tag as a project tag for my-project-template
4. Configure GitLab to use your templates group for Custom Project Templates
5. Create a new project and using the template my-project-template
6. Observe the demo-tag did not get copied over to the new project.

What is the current bug behavior?

A new project is successfully created w/o the project tags from the template.

What is the expected correct behavior?

A new project is successfully created w/the project tags from the template project.

Relevant logs and/or screenshots

N/A

Output of checks

N/A

Results of GitLab environment info

Expand for output related to GitLab environment info

System information
System:         RedHatEnterpriseServer 7.4
Proxy:          no
Current User:   gitlab
Using RVM:      no
Ruby Version:   2.5.3p105
Gem Version:    2.7.6
Bundler Version:1.16.6
Rake Version:   12.3.2
Redis Version:  3.2.12
Git Version:    2.18.1
Sidekiq Version:5.2.3
Go Version:     unknown

GitLab information
Version:        11.7.3-ee
Revision:       d573592
Directory:      /opt/gitlab/embedded/service/gitlab-rails
DB Adapter:     postgresql
DB Version:     9.6.11
URL:            https://gitlab-ng.example.com
HTTP Clone URL: https://gitlab-ng.example.com/some-group/some-project.git
SSH Clone URL:  gitlab@gitlab-ng.example.com:some-group/some-project.git
Elasticsearch:  no
Geo:            no
Using LDAP:     yes
Using Omniauth: yes
Omniauth Providers:

GitLab Shell
Version:        8.4.4
Repository storage paths:
- default:      /var/opt/gitlab/git-data/repositories
Hooks:          /opt/gitlab/embedded/service/gitlab-shell/hooks
Git:            /opt/gitlab/embedded/bin/git

Results of GitLab application Check

Expand for output related to the GitLab application check

Checking GitLab subtasks ...

Checking GitLab Shell ...

GitLab Shell: ... GitLab Shell version >= 8.4.4 ? ... OK (8.4.4)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Redis available via internal API: OK

Access to /var/opt/gitlab/.ssh/authorized_keys: OK
gitlab-shell self-check successful

Checking GitLab Shell ... Finished

Checking Gitaly ...

Gitaly: ... default ... OK

Checking Gitaly ... Finished

Checking Sidekiq ...

Sidekiq: ... Running? ... yes
Number of Sidekiq processes ... 1

Checking Sidekiq ... Finished

Checking Incoming Email ...

Incoming Email: ... Reply by email is disabled in config/gitlab.yml

Checking Incoming Email ... Finished

Checking LDAP ...

LDAP: ... Server: ldapmain
LDAP authentication... Success
LDAP users with access to your GitLab server (only showing the first 100 results)
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser
        DN: uid=someuser,ou=people,o=example.com         uid: someuser

Checking LDAP ... Finished

Checking GitLab App ...

Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ...
2/1 ... yes
11/479 ... yes
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Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.5 ? ... yes (2.5.3)
Git version >= 2.18.0 ? ... yes (2.18.1)
Git user has default SSH configuration? ... yes
Active users: ... 11
Elasticsearch version 5.6 - 6.x? ... skipped (elasticsearch is disabled)

Checking GitLab App ... Finished


Checking GitLab subtasks ... Finished

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)