Put self._draw() in clause

Author: dstansby

src/napari_matplotlib/base.py

@@ -245,7 +245,7 @@ def _update_layers(self, event: napari.utils.events.Event) -> None:
         self.layers = sorted(self.layers, key=lambda layer: layer.name)
         if self._valid_layer_selection:
             self.on_update_layers()
-        self._draw()
+            self._draw()
 
     def _draw(self) -> None:
         """