Remove the player or user role should not be possible.

[El-Limon]

Remove the player or user role should not be possible.
Now it says that it is OK while actually it will never happen.

[emielvanseveren]

@niekcandaele, can you throw an error for this in the API (returns 200 IIRC)

[niekcandaele]

Can add that!

I think it would also be good to prevent this in the frontend with a helpful message like "You cannot assign the system Player role, all players automatically have this" ?

[emielvanseveren]

Yes, will do!