Remove the last inserted vertical frame make musecore hangs

I inserted a vertical canvas (Create->Measures-> insert vertical canvas (cadre in french)).
Then I selected it and press the suppr key.
Once I lclicked in the last measure, musecore hangs.
This behavior is verified on 0.9.6 and on the trunk.

Here is the gdb log:

#0 0x081575a7 in Element::canvasPos (this=0xcdf5340)
at /home/collette/repositories/mscore/mscore/mscore/element.cpp:342
#1 0x0815671b in Element::abbox (this=0xcdf5340)
at /home/collette/repositories/mscore/mscore/mscore/element.cpp:205
#2 0x082b128f in Selection::clear (this=0xcf80670)
at /home/collette/repositories/mscore/mscore/mscore/select.cpp:197
#3 0x082b1245 in Selection::deselectAll (this=0xcf80670)
at /home/collette/repositories/mscore/mscore/mscore/select.cpp:187
#4 0x082b19d8 in Score::select (this=0xcf804f8, e=0xcf8cd20, type=SELECT_SINGLE, staffIdx=0)
at /home/collette/repositories/mscore/mscore/mscore/select.cpp:298
#5 0x080ffedd in ScoreView::select (this=0xcf97330, ev=0xcd58368)
at /home/collette/repositories/mscore/mscore/mscore/scoreview.cpp:2983
#6 0x081059ab in SelectTransition::onTransition (this=0xcd55f28, e=0xcdf4bc8)
at /home/collette/repositories/mscore/mscore/mscore/scoreview.cpp:416
#7 0xb5d53d2a in QAbstractTransitionPrivate::callOnTransition () from /usr/lib/libQtCore.so.4
#8 0xb5d4454b in QStateMachinePrivate::executeTransitionContent () from /usr/lib/libQtCore.so.4
#9 0xb5d4c53d in QStateMachinePrivate::microstep () from /usr/lib/libQtCore.so.4
#10 0xb5d4c753 in QStateMachinePrivate::_q_process () from /usr/lib/libQtCore.so.4
#11 0xb5d4ccb1 in QStateMachinePrivate::processEvents () from /usr/lib/libQtCore.so.4
#12 0xb5d4e8fc in QStateMachinePrivate::handleFilteredEvent () from /usr/lib/libQtCore.so.4
#13 0xb5d4ea0e in QStateMachine::eventFilter () from /usr/lib/libQtCore.so.4
#14 0xb5d0824e in QCoreApplicationPrivate::sendThroughObjectEventFilters ()
from /usr/lib/libQtCore.so.4
#15 0xb63016fd in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#16 0xb6308f3e in QApplication::notify () from /usr/lib/libQtGui.so.4
#17 0xb5d08f7e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#18 0xb6307e84 in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#19 0xb63955aa in ?? () from /usr/lib/libQtGui.so.4
#20 0xb6394b54 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#21 0xb63c2268 in ?? () from /usr/lib/libQtGui.so.4
#22 0xb5afab92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0xb5afe468 in ?? () from /usr/lib/libglib-2.0.so.0
#24 0xb5afe58e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0xb5d35ac1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#26 0xb63c1dba in ?? () from /usr/lib/libQtGui.so.4
#27 0xb5d075ed in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#28 0xb5d07a39 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#29 0xb5d0bbb0 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#30 0xb63017d4 in QApplication::exec () from /usr/lib/libQtGui.so.4
#31 0x08231601 in main (argc=1, av=0xbfe38944)
at /home/collette/repositories/mscore/mscore/mscore/mscore.cpp:2023