To simply put When kabuto was forced to release edo tensei by the effects of izanami. There was nobody restraining him. There was nobody. He took control of the jutsu before his body completely fell apart. If he didn't know the hand seals he would probably be dead. Tobirama actually broke hold of edo tensei momentarily before orochimaru used Hashi's cells. To be honest Madara never tried to broke hold or to forcefully make the jutsu his own. So it could be said he would've never been able to break hold of edo tensei but there's no way to prove it or not.