Comment 2 for bug 1665809

StacktraceTop:
 unity::QuicklistView::CheckAndEmitItemSignal (this=this@entry=0x56056ed86000, x=123, y=y@entry=79) at ./launcher/QuicklistView.cpp:619
 unity::QuicklistView::RecvItemMouseRelease (this=0x56056ed86000, item=0x56056ff62a60, x=80, y=<optimized out>) at ./launcher/QuicklistView.cpp:649
 emit (_A_a3=@0x7fff24b5add8: 14, _A_a2=@0x7fff24b5addc: 80, _A_a1=@0x7fff24b5ade8: 0x56056ff62a60, impl=0x56056ed77360) at /usr/include/sigc++-2.0/sigc++/signal.h:1562
 emit (this=<optimized out>, _A_a3=@0x7fff24b5add8: 14, _A_a2=@0x7fff24b5addc: 80, _A_a1=@0x7fff24b5ade8: 0x56056ff62a60) at /usr/include/sigc++-2.0/sigc++/signal.h:3263
 unity::QuicklistMenuItem::RecvMouseUp (this=<optimized out>, x=<optimized out>, y=<optimized out>, button_flags=<optimized out>, key_flags=<optimized out>) at ./launcher/QuicklistMenuItem.cpp:178