Action group for straight up free attach causes StackOverflowException

[ZodiusInfuser]

Craft to reproduce this is posted in Slack

[ZodiusInfuser]

Note that it does not occur on very simple craft with just a pod, truss and active strut :S

[ZodiusInfuser]

Got it! If you have more than one active strut made to straight-up attach at the same time then the game hangs for a time whilst it figures out what on earth to do.