Besides updating the tests output, I had to push back at the end the test for
issue1193 in test-commit, solved by cset 31a0a36d6d95, because it was using the
current date for commit and was randomizing the subsequent hash.
If we copy a file followed by an update, it's possible for the parent
manifest to no longer contain the source file of the copy, which could cause
commit to fail. If this happens, we search backwares from the first
parent to find the most likely original revision.