Add a test as per PR guidelines

Author: tigerhawkvok

pandas/tests/frame/methods/test_replace.py

@@ -1518,3 +1518,10 @@ def test_replace_object_splitting(self, using_infer_string):
             assert len(df._mgr.blocks) == 2
         else:
             assert len(df._mgr.blocks) == 1
+
+    def test_replace_bool_to_numpy_attributeerror(self):
+        # GH#47101
+        pass_pre_patch = pd.DataFrame({"d":[None]})
+        tm.assert_frame_equal(pass_pre_patch, pass_pre_patch.replace('', pd.NA))
+        fail_pre_patch = pd.DataFrame({"d":[pd.NA]})
+        tm.assert_frame_equal(fail_pre_match, fail_pre_patch.replace('', pd.NA))