Re: Git push race condition?

Matthieu Moy [off-list ref] writes:

What you describe really looks like a force-push, or a hook doing a ref
update (e.g. a hook on a dev branch that updates master if the code
passes tests or so).

... or a filesystem that is broken.  But I thought this is just a
plain-vanilla ext4, nothing exotic, so....  Puzzled.