matplotlib
diff --git a/‎lib/matplotlib/figure.py
Copy file name to clipboardExpand all lines: lib/matplotlib/figure.py
+2Lines changed: 2 additions & 0 deletions b/‎lib/matplotlib/figure.py
Copy file name to clipboardExpand all lines: lib/matplotlib/figure.py
+2Lines changed: 2 additions & 0 deletions
@@ -791,6 +791,8 @@ def add_subplot(self, *args, **kwargs):
 
             a = args[0]
             assert(a.get_figure() is self)
+            # make a key for the subplot (which includes the axes object id
+            # in the hash)
             key = self._make_key(*args, **kwargs)
         else:
             projection_class, kwargs, key = \