Re: [PATCH] Improve on the 'invalid object' error message at commit time

Linus Torvalds [off-list ref] writes:

... one thing that I 
started wondering about was whether the problem Florian saw was about one 
of the files he had done "git add" on, or whether it was a tree entry that 
was the result of "find_subtree()".

Same here.

Historically, cache-tree had issues that same corner case codepaths forgot
invalidating subtrees when they should that could have led to kinds of
bugs that are hard to diagnose.  I think the API got harder to make that
kind of mistakes while we squashed those bugs, though.