- when inserting first key for Bone in Armature, the IpoWindow now gets

a signal to change to 'show Action Ipos'
  Makes it all a tad more clear...

source/blender/src/editipo.c

@@ -3875,6 +3875,10 @@ void common_insertkey()
 
 			if (!act){
 				act= G.obpose->action=add_empty_action();
+				/* this sets the non-pinned open ipowindow(s) to show the action curve */
+				ob->ipowin= ID_AC;
+				allqueue(REDRAWIPO, ob->ipowin);
+				
 				allqueue(REDRAWACTION, 0);
 				allqueue(REDRAWNLA, 0);
 			}