Whatever happened to sharing Google forms as copies?

It used to be possible to force a copy of a Google form by editing the sharing url.

This was a mighty useful feature – you could create a nice pre-workshop survey and allow colleagues to make their own copies and modify them as they please.

You could create and share in-class quizzes for others to use. Got a cool exit ticket? Excellent. Give’r here!

No more.

Why, Google? Whyyyyy?!