tpope/vim-git — pull request #5 by jacknagel (2011-12-12 07:00:46+00:00)
Title: Detect TAG_EDITMSG as gitcommit

y/n?

I tend to write (some) tags in the same subject-body format as commits. There's also NOTES_EDITMSG, but I don't think that the commit style really lends itself to that so I left it out.