Subject: bug#57684: locked narrowing breaks existing code without an apparent way to repair

From: Gregory Heytings <[email-masked]>
Date: Fri, 09 Sep 2022 16:20:23 +0000

>> This issue is being worked on, see the (not yet finished) 
>> feature/improved-locked-narrowing branch.
>
> Is there much to be done on that branch before merging?
>

I don't know yet.  Not "that much" I think, but there are a number of 
things that need to be fixed/improved.