> Thanks for the report! Unfortunately, the stack trace was not informative, because there are no debug symbols. Here's a minimal reproducer, which also traps an assertion on PG13. I'll bisect and see how far back it goes.
The reproducer I shared stopped working at 7266d0997dd2a (Allow functions-in-FROM to be pulled up if they reduce to constants). I'll dig deeper a bit later unless someone beats me to it.