Rename Method refactoring does not change the name of the super method in the classes that override it

[researcher175]

Rename Method refactoring applied to a method defined in a super class does not modify the signature of the method in the classes that override it

1. Steps to reproduce the behavior:

class BaseFormat(object):
    def __init__(self, fp, **kwargs):
        pass

    def to_iterable(self):
        raise NotImplementedError('Must implement a "to_iterable" method.')


class DelimitedFormat(BaseFormat):
    def __init__(self, fp, **kwargs):
        BaseFormat.__init__(self, fp, **kwargs)

    def to_iterable(self):
        return None

2. Apply the Rename Method refactoring with any new name to 'BaseFormat.to_iterable'

3. Expected code after refactoring:

class BaseFormat(object):
    def __init__(self, fp, **kwargs):
        pass

    def new_method_name(self):
        raise NotImplementedError('Must implement a "to_iterable" method.')


class DelimitedFormat(BaseFormat):
    def __init__(self, fp, **kwargs):
        BaseFormat.__init__(self, fp, **kwargs)

    def new_method_name(self):
        return None

4. The method that overrides the original method in the subclass is not renamed