Michael Paquier <michael(at)paquier(dot)xyz> writes:
>>> A customer has reported a regression with the parsing of rather large
>>> XML data, introduced by the set of backpatches done with f68d6aabb7e2
>>> & friends.
BTW, further testing shows that the same failure occurs at
f68d6aabb7e2^. So AFAICS, the answer as to why the behavior
changed there is that it didn't.
regards, tom lane