BUG: Set stale when rotating camera in Axes 3D (Fixes #8814)

dopplershift · dopplershift · commit 619e136d4bca · 2017-10-20T14:54:45.000-06:00
There was nothing to signal stale state before.
diff --git a/lib/mpl_toolkits/mplot3d/axes3d.py b/lib/mpl_toolkits/mplot3d/axes3d.py
@@ -1206,6 +1206,7 @@ def _on_move(self, event):
             self.elev = art3d.norm_angle(self.elev - (dy/h)*180)
             self.azim = art3d.norm_angle(self.azim - (dx/w)*180)
             self.get_proj()
+            self.stale = True
             self.figure.canvas.draw_idle()
 
 #        elif self.button_pressed == 2:
