Fix subplot number increment bug

jonmmease · jonmmease · commit 90f119d01060 · 2019-05-06T06:20:33.000-04:00
diff --git a/plotly/subplots.py b/plotly/subplots.py
@@ -904,7 +904,7 @@ def _init_subplot_single(
         'trace_kwargs': {trace_key: label}}
 
     # increment max_subplot_id
-    max_subplot_ids['scene'] = cnt
+    max_subplot_ids[subplot_type] = cnt
 
     return ref_element
 
