Thanks for the fix.
I’m not good at finding things in unfamiliar source code.
With my site working fine on 22.214.171.124, I’ll just wait for the 126.96.36.199 patch.
I’m sure this will be helpful to anyone else who happens to look here.
I get the impression that this is related to mmllmm’s later post:
“The content sidebar has disappeared but still see sidebar frame ”