alt Hacker NewsThere is a certain appeal to not depending on more tools, and there is something elegant about the bug list traveling with revisions, if they are closed when the bug is fixed. So at any point you could go backwards and see known bugs at the time.
This also applies to certain project management flows and statuses.
Right, there are advantages of your defect list riding right along with the code repository itself. The history here is more interesting and keeping it connected to git allows portability options (maybe across network divides).