SoGo still logs everyone out when I only re-synch one specific user

[theoneandonly-vector]

I have SoGo setup to use SSO so it will re-login my users automatically, but they lose their open email etc..

so.. I synch only one user by using an own mailcow-ldap-sync - directory for each user and passing an "--override-filter" to only match this one user..

but.. as soon as SoGo want to refresh for new emails it refreshes the whole sogo-session on all users. I can verify in the mailcow_ldap_sync.log of the specific user that only he should have been updated.