Thanks Simon for checking and clarifying! I'm marking the devel task as Fix Released then, and adding a Confirmed Focal task to reflect your IRC comment:
<sdeziel> paride: I can also confirm that Focal's broken and there, neither automatic-interface-scan nor interface-interval paper over the problem... bind9 simply never notices late showing IPs
Thanks Simon for checking and clarifying! I'm marking the devel task as Fix Released then, and adding a Confirmed Focal task to reflect your IRC comment:
<sdeziel> paride: I can also confirm that Focal's broken and there, neither automatic- interface- scan nor interface-interval paper over the problem... bind9 simply never notices late showing IPs
We'll tackle LP: #1965521 on its own.