Did you ever noticed the AI to destroy a Wall?

[Gatts]

I believe that the AI logic in questions of walls is very direct/clear:

If there is a way around - they take it...

If AI has more units - it may calculate if it is more effective to lose one turn of one unit to destroy it - opening so the free way to others (I write "it may calculate" - as often I see that I would surely rather destroy the wall instead of going around with each of mine units...)

If the way around is longer that losing one turn on destroying the wall - AI will more positively destroy it...

Still I found that sometimes AI get stuck when trying to overcome the wall

If there is totally no way around the wall - the wall get's destroyed for 100%