My question was, of course, rhetorical. This and hunting regressions are two great reasons to keep history. "What did John do on Tuesday morning" is not a good

My question was, of course, rhetorical. This and hunting regressions are two great reasons to keep history. "What did John do on Tuesday morning" is not a good reason to keep history. Neither is "This change was made as part of a sprawling "fix" commit that happened on Thursday afternoon". The important point is if you are going to keep history at all it needs to be kept in a state that is actually useful, meaning useful for the first two things, not the last two. Otherwise it's just a waste of disk space. The git history is meticulously maintained which is what makes it actually useful.