2.5 Bugfixes:

* Removed unnecessary define for context loop (editable posechannels)

* Fixed crash in animation-channel filtering - missing check for no world animation.

source/blender/blenkernel/BKE_context.h

@@ -95,7 +95,6 @@ enum {
 	CTX_DATA_VISIBLE_BONES,
 	CTX_DATA_EDITABLE_BONES,
 	CTX_DATA_VISIBLE_PCHANS,
-	CTX_DATA_EDITABLE_PCHANS,
 };
 
 typedef int bContextDataMember;

source/blender/editors/animation/anim_filter.c

@@ -1094,7 +1094,7 @@ static int animdata_filter_dopesheet_scene (ListBase *anim_data, bDopeSheet *ads
 	}
 		
 	/* world */
-	if ((wo) && !(ads->filterflag & ADS_FILTER_NOWOR)) {
+	if ((wo && wo->adt) && !(ads->filterflag & ADS_FILTER_NOWOR)) {
 		/* Animation or Drivers */
 		if ((ads->filterflag & ADS_FILTER_ONLYDRIVERS) == 0) {
 			AnimData *adt= wo->adt;