Comment 9 for bug 1703035

I just looked at the code and verified that a trigger is in place; controller versions /should/ be updated in real time in the UI. We'll keep an eye out for this issue while testing; please file another bug if you narrow down the specifics. The following commands will determine what MAAS has recorded for each version, which would be helpful debug info if you see this again:

$ sudo maas-region dbshell
maasdb=# SELECT n.hostname, ci.version
    FROM maasserver_node n
    LEFT OUTER JOIN maasserver_controllerinfo ci ON n.id=ci.node_id
    WHERE n.node_type IN (2,3,4) ORDER BY version NULLS FIRST;