It appears to be treating the text as ASCII characters and trying to convert the text to Unicode, where \Uffffffff (32-bit representation of -1) represents any code unit that isn't assigned to a code point.
-- Copy/Paste Can't Handle Nonprinting Characters https://bugs.launchpad.net/bugs/364874 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs