Comment 14 for bug 327228

@SeeSpatz: the backtrace is *the same* (even the functions order and line numbers):

""
#12 KCal::IncidenceBase::uid (this=0x131cf50) at /usr/include/qt4/QtCore/qstring.h:670
#13 0x00007fffd816db13 in removeIncidenceFromMultiHashByUID<KCal::Event*> (container=@0x1272528, key=@0x7fffe21f2ec0, uid=@0x7fffe21f2eb0) at /build/buildd/kdepimlibs-4.2.0/kcal/calendarlocal.cpp:93
#14 0x00007fffd8170fd1 in KCal::CalendarLocal::incidenceUpdated (this=0x1271580, incidence=0x1306bd0) at /build/buildd/kdepimlibs-4.2.0/kcal/calendarlocal.cpp:394
#15 0x00007fffd813cec3 in KCal::IncidenceBase::updated (this=0x1306bd0) at /build/buildd/kdepimlibs-4.2.0/kcal/incidencebase.cpp:474
""

The version of KDE/Kontact doesn't really matter in this case. If you posted a crash report for KDE4.1.x and it wasn't properly fixed for KDE4.2 it will be there in 4.2 (that doesn't mean that it's a *different* bug).
The same for the Kontact version (as it's related to the KDE version (KDE4.1->Kontact1.3 , KDE4.2->Kontact1.4)

Not really sure about the relation between the different signals

Thanks