Does authentik support group attributes overrides?

[DenuxPlays]

Hello,

I've setup my nextcloud to use authentik as it's IdP using OIDC following the guide from authentik.
Now I wanted to create a second group that I can assign so some users have an elevated quota.
My Group structure:
Nextcloud User (nextcloud_quota: 5 GB) -> Nextcloud - Quota 25GB (nextcloud_quota: 25 GB)

So my quota group has the normal nextcloud user group as it's parent but I've noticed that if a user is in both groups nextcloud gives the user only 5GB of space but if I put a user in the quota group only the user gets 25 GB.
Does authentik not override attributes like this? (I thought it would if the group has the base group as a parent).
The source from my property mapping is the same as in the guide.

Why do I want this setup?

My plan was that the "Nextcloud User" group would grant users access to my nextcloud and defines some default values.
Users that need more space can then get a "Nextcloud - Quota *" group that would override the quota and give the user more space to work with.