* Don't use getattr in _get_parent_attribute to avoid recursion issues
Fixes#23609
* Move extend/prepend to field attribute
Also removes _get_attr* methods that were basically just calling
_get_parent_attribute because it needed to set those params.
Also modifies _get_parent_attribute() to pull those values from the
FieldAttributes instead of using the ones passed into the function.
* Better fixes for _get_parent_attribute
ebf971f931