[m_mueller]

I get that, I just wondered whether it's technically possible (with supported git operations, not hacking down at FS / byte level).

[Dylan16807]

If you want to undo without reflog entries, just snip the most recent line off the reflog.

If you want to put annotations on commits, use tags with message bodies.

So yes, there are ways to accomplish what you want.

[kasabali]

well, there is git-notes(1), but I'm not sure how it can be used as a journal for reflog operations.