[Bf-blender-cvs] [b761641] : Fix T39081: Crash duplicating objects

[Campbell Barton]

Commit: b761641c966e016aca43884dd0bb22e0d201432b
Author: Campbell Barton
Date:   Tue Mar 11 17:46:11 2014 +1100
https://developer.blender.org/rBb761641c966e016aca43884dd0bb22e0d201432b

Fix T39081: Crash duplicating objects

===================================================================

M	source/blender/editors/space_image/space_image.c

===================================================================

diff --git a/source/blender/editors/space_image/space_image.c b/source/blender/editors/space_image/space_image.c
index 5c9fd23..14fd486 100644
--- a/source/blender/editors/space_image/space_image.c
+++ b/source/blender/editors/space_image/space_image.c
@@ -512,18 +512,21 @@ static void image_listener(bScreen *sc, ScrArea *sa, wmNotifier *wmn)
 		}
 		case NC_OBJECT:
 		{
-			Object *ob = OBACT;
 			switch (wmn->data) {
 				case ND_TRANSFORM:
 				case ND_MODIFIER:
-					if (ob == (Object *)wmn->reference && (ob->mode & OB_MODE_EDIT)) {
+				{
+					Object *ob = OBACT;
+					if (ob && (ob == wmn->reference) && (ob->mode & OB_MODE_EDIT)) {
 						if (sima->lock && (sima->flag & SI_DRAWSHADOW)) {
 							ED_area_tag_refresh(sa);
 							ED_area_tag_redraw(sa);
 						}
 					}
 					break;
+				}
 			}
+
 			break;
 		}
 	}