Ubuntu used a patch for this, but it's just a work-around for now and multiple upstream's developers told me that is not the right approach to use. -- debbug#555134 ...
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ID Status▲ Resolution Sev Product▲ Comp Assignee▲ Reporter Summary
29060 NEW --- nor Sisyphus libical aris Sergei.Naumov KDE 4.10.4 : kmail падает при открытии писем-приглашений из Outlook

File a new bug in the "libical" component of the "Sisyphus" product