Re: [BUGS] BUG #14830: Missed NOTIFications, PostgreSQL 9.1.24

So I managed to accidentally kill and/or restart both servers while trying to install debug symbols, but I'm doing a new run now and I noticed something interesting: the listening backend's RecentXmin doesn't seem to ever go forward.  By my reading of this code, that would mean trouble for this piece of code in TransactionIdIsInProgress:

  if (TransactionIdPrecedes(xid, RecentXmin))

      return false;

Is this not an obvious bug?  async.c would think the transaction is not running, and did not commit -> throw away the notification.  That would also explain why it takes days for this to happen (since we need to run through enough xids to wrap around).