core: Invalidate cacheAsBitmap when graphics change

core/src/display_object/graphic.rs

@@ -173,6 +173,7 @@ impl<'gc> TDisplayObject<'gc> for Graphic<'gc> {
         } else {
             tracing::warn!("PlaceObject: expected Graphic at character ID {}", id);
         }
+        self.invalidate_cached_bitmap(context.gc_context);
     }
 
     fn run_frame_avm1(&self, _context: &mut UpdateContext) {

tests/tests/swfs/visual/cache_as_bitmap/shape_changed/test.toml

@@ -0,0 +1,7 @@
+num_frames = 3
+
+[image_comparison]
+tolerance = 0
+
+[player_options]
+with_renderer = { optional = false, sample_count = 1 }