personally i would suggest to un-confirm this bug until there is a precise description of how this is different from Bug 85969 mentioned by Dominik and there is a explanation of how to reproduce this.
judging from the duplicates this seems to be exactly the aforementioned bug and should be marked as duplicate thereof. or - because it is cumbersome to move all the duplicates - we could mark it as invalid and add a hint in the description to look there...
personally i would suggest to un-confirm this bug until there is a precise description of how this is different from Bug 85969 mentioned by Dominik and there is a explanation of how to reproduce this.
judging from the duplicates this seems to be exactly the aforementioned bug and should be marked as duplicate thereof. or - because it is cumbersome to move all the duplicates - we could mark it as invalid and add a hint in the description to look there...