[keycloak-user] Configuring signing keys on a per-client basis?

We're in the process of rotating one of our realm certificates. I'm aware that Keycloak can have multiple active and/or passive key providers configured but it looks like Keycloak will only ever use the single active key provider with the highest priority for signing. I'm pretty sure the answer is no but is there any way of configuring Keycloak to use a specific active key provider when signing for a specific client? Having that feature would make the key rotation process slightly easier if you have to coordinate the rotation timing with multiple clients that can only hardcode a single certificate/public key to trust. Jared