Comment 7 for bug 2003980

We think there are two places where MAAS does not inform rack controller that the custom image has changed: the first when the image is deleted (MAAS should trigger rack controller sync, but currently does not), and the second where a new custom image is uploaded with the same name (MAAS DB trigger should fire, causing rack controller sync, but currently does not).

In MAAS 3.5 and later, the image storage and synchronisation mechanisms are significantly changed, so this issue is relevant to MAAS 3.4.x and earlier releases.