The fix

Author: TomAugspurger

pandas/core/arrays/numpy_.py

@@ -222,7 +222,7 @@ def __getitem__(self, item):
             item = item._ndarray
 
         result = self._ndarray[item]
-        if not lib.is_scalar(result):
+        if not lib.is_scalar(item):
             result = type(self)(result)
         return result