BasicForm resetFields clears tenantId along with other fields, so the
auto-query after reset hit the empty-list guard (or was rejected by the
backend). Add a shared imSearchReset handler in imTenantOptions.ts that
refills the tenant select with its first option (bound users keep their
own tenant) before reloading, and wire it into the 9 IM list pages whose
reset did not already refill the tenant condition.
Austin