API: only shrink hist bars if not stacked

tacaswell · tacaswell · commit 22a9f8f640e9 · 2016-08-28T12:53:32.000-04:00
Partially addresses #6876
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -6206,7 +6206,8 @@ def _normalize_input(inp, ename='input'):
 
             if rwidth is not None:
                 dr = min(1.0, max(0.0, rwidth))
-            elif len(n) > 1:
+            elif (len(n) > 1 and
+                  ((not stacked) or rcParams['_internal.classic_mode'])):
                 dr = 0.8
             else:
                 dr = 1.0
