if you have files with a ´ in it (ACCUTE ACCENT, 0xB4). This happens at least with "character set = iso8859-15" turned on with Samba 2. 2.x. Samba 3 is not affected.
I just opened my eyes and realized that ACCUTE ACCENT isn't part of ISO-8859-15 becuase it is replaced by Z WITH CARON. So the behaviour is what whould be expected. PS: shouldn't the bug reporter be able to change the bug_status field? I can't set this to INVALID.
I changed the bugzilla code so that only developers could resolve bugs. Mainly because I'm paranoid.