Comment 1 for bug 1488684

There is an inherent race in trying to prevent someone from powering-on an already-on node, or powering-off an already-off node. I think MAAS should not try to be clever here, and simply provide both choices all the time.

Having said that, it may be worth preventing or putting serious looking warnings around all power control when the node is in transitional states (commissioning, deploying) so that we lead people to use "abort $operation" instead.