Describe the bug
When a user accepts a role-invite, he/she encounters a 400 error.
To Reproduce
Steps to reproduce the behaviour:
- Go to Role-invite while the user is logged in
- Enter the invite token
- See error
Expected behaviour
It should've worked without any error
GIF

Desktop (please complete the following information):
- OS: [e.g. iOS] Ubuntu 16.04
- Browser [e.g. chrome, safari] Chrome
Additional context
Working on it