Due to the way we are using branches maniphest will sometime display ambiguous commit lines - that is, two identical commits are shown are on different branches. The ambiguity would be resolved if the branch name were to show either in the view directly or when the user hovers a given commit.
There are two instances where commit hashes are ambiguous:
(1) when visiting a revision
(2) when attaching a revision to a task
In both cases it would help if the branch would be indicated nearby. I attached two mocks what attach the branch to the right of the links. A less intrusive option would be if hovering would show the branch.