How to configure Linstor auto promote option

I am using helm to deploy piraeus operator and linstor cluster ,

I have recently upgraded my chart from 2.8.0 to 2.8.1 prior to this upgrade if any node failure occurs the secondary linstor volume becomes primary

but after the upgrade the Tie-Breaker is becoming primary, when is set the auto-promote option then only the secondary is becoming primary on node failure

how do i set auto-promote=true via helm?