systemd splits unquoted Environment= values on whitespace, so
'OAUTH_SCOPES=openid email profile roles' arrived as 'openid' and the
authorize request carried a single scope — the id_token then lacked the
email claim and the callback failed. Quoted, all four scopes flow.
Also: assign the default openid/email/profile ScopeMappings to the
provider (2026.x no longer auto-creates them; without them the token
grant is the intersection with the provider's mappings = roles only,
and userinfo 403s).
Frank
35381f7e9d