[Evolution] Bug#610088: Evolution crashes now and again

[Pascal BERNARD]

Package: evolution
Version: 2.30.3-5

In .xsession-error I can find many times:
(evolution:3062): Gtk-WARNING **: A floating object was finalized. This
means that someone
called g_object_unref() on an object that had only a floating
reference; the initial floating reference is not owned by anyone
and must be removed with g_object_ref_sink().