Comment 14 for bug 338002

A merge proposal already has an 'approved revision'. If this could be updated during the review process, this would solve part of the problem. Ideally, it could be set to 'head' which seems to be what most merge proposals want.

Do we actually know if regenerating diffs for in progress merge proposals requires more resources that we can allocate? I don't know how many commits we expect to branches with open merge proposals or how much effort it takes to generate a diff whenever this happens.