Permanent Unlocking

I’m posting this here because I’m not confident enough in myself to declare it a bug, I feel like I must be missing something.
…But, I was tinkering around and set a lock password in the Configuration. I thought better of it and went to remove the password, which I tried to do instinctively by supplying a blank one, but this didn’t work. I double checked the User Guide, which says on page 96:
(Select Change password, type in the Old password then click on Set.
In effect, you’re supplying a blank new password.)

But when I do this I just get an error dialogue which states “You must give the new password to do this.”
Am I missing something? Is the documentation wrong here? The configuration program?

For context, this is 5.28 on a Pi 400.

Yes this looks like a real problem: the “change password” dialogue won’t let you set a null password to permanently unlock the computer.

You can still unlock the computer by means of:
*FSLock_Unlock -full (password)

Substitute your real password in place of (password) above.

(note: post edited to remove a more long-winded method of clearing the password)

When I used this last, to unlock permanently you 1st temporary unlock, then unlock a 2nd time to make it stick

When I used this last, to unlock permanently you 1st temporary unlock, then unlock a 2nd time to make it stick

Yes, that works all the way back to RISC OS 4.39. This is clearly a documentation error: I’ve added it to the User Guide small corrections page.

When I used this last, to unlock permanently you 1st temporary unlock, then unlock a 2nd time to make it stick

Yep, sure enough, unlocking twice does it. Thanks Mike, and thank you Stuart for adding to the corrections page!