stateMachine crash after changing fullView

[nvuaille]

Way to reproduce :

• create a constraint
  ( - add a scenario in it )
• put it in fullview
• try to change edition tool

info :

0 QMetaObject::activate(QObject *, int, int, void * *) 0x7ffff650ed66
1 ScenarioStateMachine::exitState moc_ScenarioStateMachine.cpp 241 0x7fffd849c5f5
2 ScenarioStateMachine::changeTool ScenarioStateMachine.cpp 168 0x7fffd83fd757
3 ToolMenuActions::ToolMenuActions(iscore::ToplevelMenuElement, ScenarioControl *)::{lambda()#2}::operator()() const ToolMenuActions.cpp 46 0x7fffd840c5d2
4 QtPrivate::FunctorCallQtPrivate::IndexesList<, QtPrivate::List<>, void, ToolMenuActions::ToolMenuActions(iscore::ToplevelMenuElement, ScenarioControl *)::<lambda()>>::call(ToolMenuActions::<lambda()>, void * *) qobjectdefs_impl.h 494 0x7fffd840e820
5 QtPrivate::Functor<ToolMenuActions::ToolMenuActions(iscore::ToplevelMenuElement, ScenarioControl *)::<lambda()>, 0>::callQtPrivate::List<, void>(ToolMenuActions::<lambda()> &, void *, void * *) qobjectdefs_impl.h 551 0x7fffd840e6d8
6 QtPrivate::QFunctorSlotObject<ToolMenuActions::ToolMenuActions(iscore::ToplevelMenuElement, ScenarioControl *)::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void * *, bool *) qobject_impl.h 192 0x7fffd840e323
7 QMetaObject::activate(QObject *, int, int, void * *) 0x7ffff650f1d5
8 QAction::triggered(bool) 0x7ffff73786b2
9 QAction::activate(QAction::ActionEvent) 0x7ffff737a4d7
10 QAction::event(QEvent *) 0x7ffff737a7bf
11 QApplicationPrivate::notify_helper(QObject *, QEvent *) 0x7ffff73852b4
12 QApplication::notify(QObject *, QEvent *) 0x7ffff7388c86
13 QCoreApplication::notifyInternal(QObject *, QEvent *) 0x7ffff64dce24
14 QShortcutMap::dispatchEvent(QKeyEvent *) 0x7ffff5b5ef01
15 QShortcutMap::tryShortcutEvent(QObject *, QKeyEvent *) 0x7ffff5b5fe7e
16 QApplication::notify(QObject *, QEvent *) 0x7ffff7388ce3
17 QCoreApplication::notifyInternal(QObject *, QEvent *) 0x7ffff64dce24
18 QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent *) 0x7ffff5b2e01a
19 QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *) 0x7ffff5b36a15
...