send explicit deauth if not default

[gedankenstuecke]

Closes #589

[github-actions[bot]]

Coverage report

The coverage rate went from 98.78% to 98.79% :arrow_up:

100% of new lines are covered.

Diff Coverage details (click to unfold)

### server/apps/main/views.py `100%` of new lines are covered (`97.52%` of the complete file). ### server/apps/users/helpers.py `100%` of new lines are covered (`100%` of the complete file).

[gedankenstuecke]

@llewelld I've invited you for the review as you raised the point in the first place 🙂

[gedankenstuecke]

Yeah, I have to admit I was surprised myself that we don't have that call as part of the django-open-humans package! Do you want to make an issue in the GH repo of the project or should I? :)

[llewelld]

Yeah, I have to admit I was surprised myself that we don't have that call as part of the django-open-humans package! Do you want to make an issue in the GH repo of the project or should I? :)

As it happens I started creating a PR; I'll submit it shortly.

[gedankenstuecke]

Awww, thanks!

[gedankenstuecke]

Great, thanks! 🚀