diff --git a/lib/ansible/playbook/base.py b/lib/ansible/playbook/base.py
index 20fe442a5a..e3ae6374ae 100644
--- a/lib/ansible/playbook/base.py
+++ b/lib/ansible/playbook/base.py
@@ -110,32 +110,16 @@ class Base:
     def _generic_g(prop_name, self):
         method = "_get_attr_%s" % prop_name
         if hasattr(self, method):
-            return getattr(self, method)()
+            value = getattr(self, method)()
+        else:
+            try:
+                value = self._attributes[prop_name]
+                if value is None and hasattr(self, '_get_parent_attribute'):
+                    value = self._get_parent_attribute(prop_name)
+            except KeyError:
+                raise AttributeError("'%s' object has no attribute '%s'" % (self.__class__.__name__, prop_name))
 
-        # value_found is here because we think that value needs to be changed
-        # in the future.  self._attributes[prop_name] will return None
-        # sometimes, apparently if it's not explicitly set in the playbook.
-        # This would seem to make None a sentinel value.  However, the user
-        # could set the attribute to None explicitly (via !!nil) which will
-        # not be recognized because it's being used as a sentinel.  And
-        # sometimes _attributes[prop_name] throws a KeyError so None doesn't
-        # always mean that prop_name was not set.  To work around these
-        # issues, value_found is here so that if value's behaviour is changed
-        # in the future, things can still be made to work.
-        try:
-            value = self._attributes[prop_name]
-            value_found = True
-        except KeyError:
-            value = None
-            value_found = False
-
-        if not value_found and hasattr(self, '_get_parent_attribute'):
-            value = self._get_parent_attribute(prop_name)
-            value_found = True
-
-        if value_found:
-            return value
-        raise AttributeError("'%s' object has no attribute '%s'" % (self.__class__.__name__, prop_name))
+        return value
 
     @staticmethod
     def _generic_s(prop_name, self, value):
diff --git a/lib/ansible/playbook/block.py b/lib/ansible/playbook/block.py
index 392b00b294..2994eadf56 100644
--- a/lib/ansible/playbook/block.py
+++ b/lib/ansible/playbook/block.py
@@ -296,13 +296,13 @@ class Block(Base, Become, Conditional, Taggable):
             value = self._attributes[attr]
 
             if self._parent_block and (value is None or extend):
-                parent_value = getattr(self._parent_block, attr)
+                parent_value = getattr(self._parent_block, attr, None)
                 if extend:
                     value = self._extend_value(value, parent_value)
                 else:
                     value = parent_value
             if self._task_include and (value is None or extend):
-                parent_value = getattr(self._task_include, attr)
+                parent_value = getattr(self._task_include, attr, None)
                 if extend:
                     value = self._extend_value(value, parent_value)
                 else:
diff --git a/lib/ansible/playbook/task.py b/lib/ansible/playbook/task.py
index 309579c85a..c55f32b2c4 100644
--- a/lib/ansible/playbook/task.py
+++ b/lib/ansible/playbook/task.py
@@ -415,13 +415,13 @@ class Task(Base, Conditional, Taggable, Become):
             value = self._attributes[attr]
 
             if self._block and (value is None or extend):
-                parent_value = getattr(self._block, attr)
+                parent_value = getattr(self._block, attr, None)
                 if extend:
                     value = self._extend_value(value, parent_value)
                 else:
                     value = parent_value
             if self._task_include and (value is None or extend):
-                parent_value = getattr(self._task_include, attr)
+                parent_value = getattr(self._task_include, attr, None)
                 if extend:
                     value = self._extend_value(value, parent_value)
                 else:
@@ -447,3 +447,5 @@ class Task(Base, Conditional, Taggable, Become):
         '''
         return self._get_parent_attribute('any_errors_fatal')
 
+    def _get_attr_loop(self):
+        return self._attributes['loop']