[accerciser] Fixed crash when selecting item under pointer. Workaround for pygtk gdk bug (http://bugzilla.gnome.o

[Eitan Isaacson <eitani src gnome org>]

commit c3e7d1d0b712ed012e4ff5ebedcb14a2c4852617
Author: Eitan Isaacson <eitan ascender com>
Date:   Mon Aug 31 16:28:03 2009 -0700

    Fixed crash when selecting item under pointer. Workaround for pygtk gdk bug (http://bugzilla.gnome.org/show_bug.cgi?id=593732).

 plugins/quick_select.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/plugins/quick_select.py b/plugins/quick_select.py
index 519a30b..b70605e 100644
--- a/plugins/quick_select.py
+++ b/plugins/quick_select.py
@@ -70,6 +70,7 @@ class QuickSelect(Plugin):
     '''
     display = gtk.gdk.Display(gtk.gdk.get_display())
     screen, x, y, flags =  display.get_pointer()
+    del screen # A workaround http://bugzilla.gnome.org/show_bug.cgi?id=593732
 
     # First check if the currently selected accessible has the pointer over it.
     # This is an optimization: Instead of searching for 
@@ -106,6 +107,7 @@ class QuickSelect(Plugin):
           else:
             if z_order > top_window[1]:
               top_window = (acc, z_order)
+
     if top_window[0]:
       self.node.update(top_window[0])