- bug fix, apply modifier removed modifier even on certain

errors
 - change drawimagespace to check and update object data if
   it needs a recalc. this fixes errors with a recalc being
   flushed but not actually being done before spaceimage
   redraws. Updates typically actually happen in draw loop,
   which is not a great design...
 - make shared vertexcol didn't flush update

source/blender/src/editobject.c

@@ -1951,6 +1951,8 @@ void special_editmenu(void)
 				
 				if(me->tface) mcol_to_tface(me, 1);
 				BIF_undo_push("Shared VertexCol");
+
+				DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 			}
 		}
 		else if(G.f & G_WEIGHTPAINT) {