Add user mailbox fails for surnames with apostrophe

[Anthony Farrell]

When adding a user who has a surname with apostrophe and two leading
capital letters (e.g O'Carroll) the user account is added but kolab does
not create the mailbox. When accessing the newly created account the
message ' Error: mailbox does not exist' is presented.

pykolab log shows:

pykolab.daemon ERROR Error in process 'Kolab(example.com)', terminating:
SyntaxError('invalid syntax', ('<string>', 1, 65, "retval =
'{0}.{1}@{2}'.format('Nigel'[0:1].capitalize(),
'O'Carroll', 'example.com')"))

Is there an easy solution or should this be considered a bug?
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