transaction: really fix _addbackupentry key usage (
issue4684)
The fix in
fd905b2bea59 is actually wrong. We now use the filename to match what
'_addentry'. This whole untested code is quite suspicious. This seems to point
that no one is ever running 'tr.find' for a backup file.
To run the tests, do:
cd tests/
python run-tests.py
See http://mercurial.selenic.com/wiki/WritingTests for
more information on writing tests.