4.11 - AI debugging

[FC99]

Originally Posted by Lagarto

The problem is - once the AI enter circuit, they won't fight any more.
I know that someone else may call it a feature. The AI dudes could have a bad day, temporary blindness, air sickness, suicidal thoughts, hangover or they were just plain dumb. But maybe, just maybe, it's a bug and need fixing?

I already addressed this so fix is ready for 4.12. But while we are at it what would be desired AI behavior in this situation. Currently, I have them stay in landing pattern unless they are directly attacked.