OIDC: group to role mapping not working when group contains space

[jrttr]

Describe the Bug

I've migrated from LDAP to OIDC-Login.
With LDAP authentication we were able to use all groups and map them to roles.
Since the migration to OIDC the group to role mapping works for groups without spaces only

Steps to Reproduce

1. Setup OIDC in .env and enable groups_sync

OIDC_USER_TO_GROUPS=true
OIDC_GROUPS_CLAIM=groups

2. Use "OIDC_DUMP_USER_DETAIL" to verify the groups claim is working

OIDC_DUMP_USER_DETAILS=true

The details should look something like this:
(This example just shows the necessary details)

{
  "sub": "f:PfJpQtSaKJ3r6TFZmgi:testuser",
  "groups": [
    "group-without-spaces",
    "group with spaces"
  ],
  "preferred_username": "testuser",
  "family_name": "Test User",
  "email": "testuser@example.org"
}

3. create 2 roles. One with the "External Authentication IDs" group-without-spaces one with group with spaces

4. Relogin and check the roles in the user.

Expected Behaviour

I would expect both roles mapped to the user, but instead just the group-without-spaces is mapped.

Screenshots or Additional Context

No response

Browser Details

No response

Exact BookStack Version

v25.12.3