When rubberbanding over an empty area, everything is selected on gesture
end, which is a bit counter-intuitive.
https://bugzilla.gnome.org/show_bug.cgi?id=780735
if (!priv->rubberband_extend && !priv->rubberband_modify)
gtk_flow_box_unselect_all_internal (box);
- gtk_flow_box_select_all_between (box, priv->rubberband_first, priv->rubberband_last, priv->rubberband_modify);
+ if (priv->rubberband_first && priv->rubberband_last)
+ gtk_flow_box_select_all_between (box, priv->rubberband_first, priv->rubberband_last, priv->rubberband_modify);
+
gtk_flow_box_stop_rubberband (box);
g_signal_emit (box, signals[SELECTED_CHILDREN_CHANGED], 0);