Adding a member other than "me" does not work

[hydrielax]

Steps to reproduce:

• Be an admin of a group
• Try to add a new member
• On validation, you get the error "This field cannot be null" for the student field

Notes:

• Error is only raised on the production server, not on local server
• Error seems to be in the front end code (the request sent to the server already contains null student before the server returns the error)

Ideas to fix it:

• Try to run locally with Docker maybe?

[hydrielax]

Seems to work now, don't know why tough...