Merge branch 'master' into enh-masked-2d

pandas/core/indexes/extension.py

@@ -250,8 +250,9 @@ def __getitem__(self, key):
         result = self._data[key]
         if isinstance(result, type(self._data)):
             if result.ndim == 1:
-                return type(self)(result, name=self.name)
+                return type(self)(result, name=self._name)
 
+            # Unpack to ndarray for MPL compat
             result = result._ndarray
 
         # Includes cases where we get a 2D ndarray back for MPL compat