Groups reset after logging in

[nagylzs]

This plugin tries to synchronize group membership when the user is logged in:

https://github.com/kanboard/plugin-oauth2/blob/master/User/GenericOAuth2UserProvider.php#L160

I don't see this "oauth2_key_groups" documented anywhere. My biggest problem is that I already have a background program that synchronizes group memberships. But if a user logs in, all of its groups are reset. As a result, the user won't see any of its projects.

Questions:

• Can we somehow turn off group synchronization?
• Where is this "oauth2_key_groups" documented? I cannot find it in the README. Where should I send that, and what should be in it?

[nagylzs]

I could figure out that the oauth server must give back an array of external group ids in the response of the user info endpoint. But I still cannot find the documentation for this.

I have tried to leave the "groups key" field empty as suggested ("Leave empty, when no group mapping is wanted"), but it will NOT turn off group mapping. It will remove the user from all (external) groups instead. Removing from all groups is not the same as "not mapping".