We have a customer that has this patch segment in a patch file:
Crucible fails to load this patch because it is not a standard hunk. JPatch fails on it too but it should give a warning instead. We should ignore/remove all of these from pre-commit patches in the short term and maybe show the permissions changes in the long term.
This issue is exactly the same as this one: http://code.google.com/p/reviewboard/issues/detail?id=2359
Using SVN 1.8+, create the diff with the --patch-compatible flag: