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lib/cartopy/mpl/gridliner.py

@@ -448,6 +448,7 @@ def __init__(self, axes, crs, draw_labels=False, xlocator=None,
         if auto_update is None:
             auto_update = True
         else:
+            # Note #2394 should be addressed before this deprecation expires.
             calling_module = inspect.stack()[1].filename
             warnings.warn(
                 "The auto_update parameter was deprecated at Cartopy 0.23.  In future "