treat merge-requests as special branches (like Github does with PR)

Hi there,

browsing through the Issues I was wondering that noone seems to be missing special branches for each merge-request. What I actually love about Github is that it is very easy to run a build upon any open pull-request from a CI perspective, as pull-requests are treated as special branches stored in refs/pull/*/*

Are there any plans on supporting this kind of behaviour? I mean like storing the merge-requests in a similar way, for example under refs/merge/*/*/

Kind Regards, Aleks