add stale mark when setting data

Raab70 · Raab70 · commit 4f2ae55b3345 · 2018-08-07T14:38:42.000-05:00
diff --git a/lib/mpl_toolkits/mplot3d/art3d.py b/lib/mpl_toolkits/mplot3d/art3d.py
@@ -172,6 +172,7 @@ def set_data_3d(self, *args):
             self._verts3d = args[0]
         else:
             self._verts3d = args
+        self.stale = True
 
     def get_data_3d(self):
         """
