I haven't seen this one, but having seen our drake running about with his hanging out from time to time, I can easily see how it would happen.
Looking ahead though, if he has it cut off (eek!), wouldn't that make him somewhat useless in the bedroom department, and increasingly frustrated in the coming months as spring arrives? If so, you'd have to get another drake to take over his duties, who might not want to share his hareem with your original fella, which then gives you an ongoing problem.
If it was me, I'd give him some time to see how he got on, but the final solution would probably involve plum sauce followed by finding a replacement. It's another of those smallholder vs pet keeper moments I guess, but good luck with whatever you decide

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Womble.