Unchecking "Unlock further protect options" has to do something; without it checked the "edit" and "move" protections are forced to be the same level. I think it should change the edit to match the move rather than vice versa, though.

In T405312#11204074, @Pppery wrote:

Unchecking "Unlock further protect options" has to do something; without it checked the "edit" and "move" protections are forced to be the same level.

It doesn't have to do anything other than allowing move protection to be changed independently once the box is unchecked (and as long as it is unchecked). Silently copying from the (previously grayed out) move protection level into the edit protection level does not make any sense.

I think it should change the edit to match the move rather than vice versa, though.

Did you reverse what you meant to say?

Regardless, I don't think unchecking the box should change any levels, in either direction. It's fine if they're synced until that point. It's unexpected and the the option receiving the magically teleported option may not even be visible on the screen.

Did you reverse what you meant to say?

Yes, I did. The act of unticking the box should change the now-grayed out options to match the one that isn't grayed out in my opinion, to avoid creating an impossible state.