StacktraceTop: gtk_notebook_button_release (widget=<value optimized out>, _gtk_marshal_BOOLEAN__BOXED (closure=0x20be700, g_closure_invoke (closure=0x20be700, signal_emit_unlocked_R (node=0x20be770, g_signal_emit_valist (instance=0x2133140,
StacktraceTop: button_ release (widget=<value optimized out>, BOOLEAN_ _BOXED (closure=0x20be700, emit_unlocked_ R (node=0x20be770, emit_valist (instance= 0x2133140,
gtk_notebook_
_gtk_marshal_
g_closure_invoke (closure=0x20be700,
signal_
g_signal_