Comment 2 for bug 834630

StacktraceTop:
 unity::switcher::SwitcherModel::DetailSelectionWindow (this=0x8d94608) at /build/buildd/unity-4.10.2/plugins/unityshell/src/SwitcherModel.cpp:132
 unity::switcher::SwitcherController::Hide (this=0x8cd4ec8, accept_state=true) at /build/buildd/unity-4.10.2/plugins/unityshell/src/SwitcherController.cpp:175
 UnityScreen::altTabTerminateCommon (this=0x89e3218, action=0xb5d6bc38, state=2, options=...) at /build/buildd/unity-4.10.2/plugins/unityshell/src/unityshell.cpp:1053
 operator() (p=<optimized out>, this=0xbfb58664, a3=..., a2=2, a1=0xb5d6bc38) at /usr/include/boost/bind/mem_fn_template.hpp:393
 operator()<bool, boost::_mfi::mf3<bool, UnityScreen, CompAction*, unsigned int, std::vector<CompOption>&>, boost::_bi::list3<CompAction*&, unsigned int&, std::vector<CompOption>&> > (a=<synthetic pointer>, f=..., this=0xbfb5866c) at /usr/include/boost/bind/bind.hpp:447