This is a regression from bug 492144 landed in r6498.
For whatever reason I mentioned in the review that the code didn't handle non-ascii filenames correctly but then landed it anyway and didn't fix in a follow up, sorry...
<https://code.launchpad.net/~rosslagerwall/bzr/492144-rename-wrapper/+merge/93485>
This is a regression from bug 492144 landed in r6498.
For whatever reason I mentioned in the review that the code didn't handle non-ascii filenames correctly but then landed it anyway and didn't fix in a follow up, sorry...
<https:/ /code.launchpad .net/~rosslager wall/bzr/ 492144- rename- wrapper/ +merge/ 93485>