Comment 7 for bug 1835823

Oh, I didn't realise that it was a bundle issue.

This becomes more interesting because of placement directives where you specify an application.

I do wonder if anyone actually relies on the behaviour of "use the last placement directive" for extra units.

There are two primary places where this is actually useful: "lxd:new" and "appname". This means put new units in lxd containers on new machines, and colocate with another application.

Changing this would be a breaking change in the current behaviour, not something we want to do in 2.x. Perhaps a more interesting thing would be some validator to run over the bundle where you could specify the strictness.