Make resource state validation consistent across UI and API [WAL-2461]
Make resource state validation consistent across UI and API [WAL-2461]

opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur,opennode/nodeconductor-assembly-waldur,opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur