No idea how to reproduce, just wait.
#0 0x080b2b82 in LinkedGame::data (this=0x0) at backend/gamelist.cpp:650
#1 0x080b4852 in GameList::addGame (this=0x81c5b58, IGSGameID=@0xb58bc100, WPlayerName=@0xb4aa12b8, WPlayerRank=@0xb5843e58, BPlayerName=@0xb58fa718, BPlayerRank=@0xb5811bc0) at backend/gamelist.cpp:384
#2 0x080e75fb in GameList::qt_metacall (this=0x81c5b58, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xb58392f0) at moc_gamelist.cpp:91
#3 0xb7321b3b in QMetaCallEvent::placeMetaCall () from /usr/lib/libQtCore.so.4
#4 0xb7324491 in QObject::event () from /usr/lib/libQtCore.so.4
#5 0xb77b09ed in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#6 0xb77b31a9 in QApplication::notify () from /usr/lib/libQtGui.so.4
#7 0xb731480b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#8 0xb7315df9 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#9 0xb731613d in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#10 0xb733936b in ?? () from /usr/lib/libQtCore.so.4
#11 0xb7166346 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#12 0xb71696d2 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#13 0xb7169c8e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#14 0xb7339762 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#15 0xb7833ce5 in ?? () from /usr/lib/libQtGui.so.4
#16 0xb7313bf2 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#17 0xb7313cfa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#18 0xb73161fd in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#19 0xb77aff67 in QApplication::exec () from /usr/lib/libQtGui.so.4
#20 0x0805840e in main (argc=-1249544816, argv=0xb5857b70) at main.cpp:11
^done
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I think the fix for 1905736 caused this. I did it differently now, let's see if it works now.