Created attachment 95550 [details]
backtrace of tp-qt crash

Using tp-qt (git master, 938509e2) via KDE Telepathy (current git master).

Dragging a contact from KDE Telepathy's 'contact-list' to the Plasma Desktop crashes tp-qt which then crashes the Plasma Desktop.

The crash happens likely in TelepathyQt/contact.cpp:565 - ContactCapabilities Contact::capabilities().

The full backtrace is attached.
Below is a short excerpt of the essential lines:

#6  Tp::Contact::capabilities (this=0x0) at /var/tmp/portage/net-libs/telepathy-qt-9999/work/telepathy-qt-9999/TelepathyQt/contact.cpp:565
#7  0x00007f33301cd81b in KTp::Contact::fileTransferCapability (this=0x20253d0) at /var/tmp/portage/net-im/ktp-common-internals-9999/work/ktp-common-internals-9999/KTp/contact.cpp:102
#8  0x00007f330e7dab7a in ContactWrapper::canSendFile (this=this@entry=0x8a84a10) at /var/tmp/portage/net-im/ktp-desktop-applets-9999/work/ktp-desktop-applets-9999/contact/src/contact-wrapper.cpp:74
#9  0x00007f330e7da78a in ContactWrapper::qt_metacall (this=0x8a84a10, _c=<optimized out>, _id=3, _a=0x7fff48ba9110) at /var/tmp/portage/net-im/ktp-desktop-applets-9999/work/ktp-desktop-applets-9999_build/contact/moc_contact-wrapper.cpp:176
#10 0x00007f33dc68c5cf in QDeclarativeObjectScriptClass::property (this=this@entry=0x82d8de0, obj=<optimized out>, name=@0x7fff48ba91c8: 0x7f330eaa4ce8) at qml/qdeclarativeobjectscriptclass.cpp:296
#11 0x00007f33dc68c7eb in QDeclarativeObjectScriptClass::property (this=0x82d8de0, object=<optimized out>, name=@0x7fff48ba91c8: 0x7f330eaa4ce8) at qml/qdeclarativeobjectscriptclass.cpp:218
#12 0x00007f33d7811160 in QScript::DeclarativeObjectDelegate::getOwnPropertySlot (this=0x7805000, object=0x7f330e386700, exec=0x7f330e3d2048, propertyName=..., slot=...) at bridge/qscriptdeclarativeobject.cpp:76
#13 0x00007f33d76b4c65 in fastGetOwnPropertySlot (slot=..., propertyName=..., exec=0x7f330e3d2048, this=0x7f330e386700) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSObject.h:382
#14 QTJSC::JSValue::get (this=<optimized out>, exec=0x7f330e3d2048, propertyName=..., slot=...) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSObject.h:618
#15 0x00007f33d76f315e in QTJSC::cti_op_get_by_id (args=0x7fff48ba92f0) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:1373


If you think this is not a tp-qt bug, please close this report and point me (if possible) to the culprit, so I can report this crash again at the right place.