zone - on free - dont del things we may later access during free

del them after we might access them... :) fix seg.
@fix

src/bin/e_zone.c

@@ -1467,16 +1467,19 @@ _e_zone_free(E_Zone *zone)
      }
 
    /* free desks */
-   for (x = 0; x < zone->desk_x_count; x++)
-     {
-        for (y = 0; y < zone->desk_y_count; y++)
-          e_object_del(E_OBJECT(zone->desks[x + (y * zone->desk_x_count)]));
-     }
    while (zone->obstacles)
      {
-        E_Object *obs = (void*)EINA_INLIST_CONTAINER_GET(zone->obstacles, E_Zone_Obstacle);
+        E_Object *obs = (void *)EINA_INLIST_CONTAINER_GET(zone->obstacles, E_Zone_Obstacle);
         e_object_del(obs);
      }
+   for (x = 0; x < zone->desk_x_count; x++)
+     {
+        for (y = 0; y < zone->desk_y_count; y++)
+          {
+             e_object_del(E_OBJECT(zone->desks[x + (y * zone->desk_x_count)]));
+             zone->desks[x + (y * zone->desk_x_count)] = NULL;
+          }
+     }
    free(zone->desks);
    free(zone->randr2_id);
    free(zone);