In commit list view, show when a parent commit is the HEAD of another branch

Description

In the commit view page (i.e. /GROUP/PROJECT/commit/BRANCH) we see the commit history of that branch. Usually branches are feature-branches that fork from somewhere else. When doing reviews it's handy to see in the commit history parent commits are HEADs of other branches. Right now only the graph/network view shows that information, in greater details.

Proposal

In the commit view page, mention when a parent commit is the HEAD of another branch (i.e. mention that branch). Ideally with a link to the branch view page of that branch.