Comment 10 for bug 1815665

Ok I found the change that triggers this:
- https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=c09daa910
- https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=88275ac19
[...]

It is on all branches, it just doesn't affect all test.
To re-iterate - the error is and always was the same, upstream just removed the ability
I think we need to adapt some tests to work properly with that new code.

I agree with the change in terms of SRU considerations.
It is right to fix the FE/BE protocol, the only thing that should be affected are testcases like the ones I found - so maybe some CIs might break, but not more.

I'm checking if the other test breakage I saw might be due to the same change.