Title: "Always up" hosts can always notify
Class: fix
Compatible: compat
Component: core
Date: 1699884551
Edition: cee
Level: 1
Version: 2.3.0b1
Do not postpone notifications for "always up" hosts.
The notification logic would wrongly assume that "always up" hosts may,
in fact, be down and erroneously postpone notifications. This has been
fixed, such hosts are never down.