Kusama 1.2 - How to associate stash accounts with host via RPC/JS/shell

Question

This key previously worked with Kusama until the recent metadata update (with BEEFY key)

const keys = await api.query.session.nextKeys(address.address);
const keysHex = keys.toHex();
const result = await api.rpc.author.hasSessionKeys(keysHex);
const normalizedResult = result.toPrimitive();

But now this always returns false for Kusama (still works for chain Polkadot). If I check specific subkeys with hasKeys (like the new BEEFY), it returns true. What do I need to change for this to work with the new version of Polkadot SDK?