[gtk+] x11: Handle obsolete selection requests without crashing

[Matthias Clasen <matthiasc src gnome org>]

commit 732af31424b8f382d869258dea1936616ab2748d
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 26 22:25:36 2014 -0500

    x11: Handle obsolete selection requests without crashing
    
    The ICCCM says:
    
    If the specified property is None , the requestor is an obsolete client.
    Owners are encouraged to support these clients by using the specified
    target atom as the property name to be used for the reply.
    
    Lets do that, instead of crashing.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740613

 gdk/x11/gdkdisplay-x11.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/x11/gdkdisplay-x11.c b/gdk/x11/gdkdisplay-x11.c
index 89c2b7d..e658780 100644
--- a/gdk/x11/gdkdisplay-x11.c
+++ b/gdk/x11/gdkdisplay-x11.c
@@ -939,7 +939,7 @@ gdk_x11_display_translate_event (GdkEventTranslator *translator,
       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
       if (xevent->xselection.property == None)
-        event->selection.property = GDK_NONE;
+        event->selection.property = event->selection.target;
       else
         event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
       event->selection.time = xevent->xselection.time;