Commit f3b5bc835ae4345a7a03834ffaf54a0aca92387d

Russell Belfer 2013-06-16T21:51:43

Add test of rename with no changes A tree to index rename with no changes was getting erased by the iteration routine (if the routine actually loaded the data for the unmodified file). This invokes the code path that was previously messing up the diff and iterates twice to make sure that the iteration process itself doesn't modify the data.