[Mailman-Developers] can't login with Google/Yahoo (last mailman-bundler)

[Leon]

Latest mailman-bundle, Hyperkitty==1.0.3, python-social-auth==0.2.21.

Added 'backends.yourmembership.YourMembershipAuth' in
AUTHENTICATION_BACKENDS

Got exception like this:
TypeError at /login/yourmembership/
 auth() got an unexpected keyword argument 'SSL'
Request Method: GET
Request URL: http://list.conferency.com/login/yourmembership/?next=/
archives/
Django Version: 1.8.15
Exception Type: TypeError
Exception Value:

auth() got an unexpected keyword argument 'SSL'

Exception Location: /opt/mailman/mailman-bundler/
eggs/python_social_auth-0.2.21-py2.7.egg/social/apps/django_app/utils.py in
wrapper, line 51
Python Executable: /opt/mailman/venv/bin/python
Python Version: 2.7.6

Seems like this exception is caused by Hyperkitty.

-- 
Best wishes,
Libin Feng