Right now it seems senseless to approach the gates. I avoid the front door completely and always take ladders/siege towers.
It's sad, but even if the soldiers break down the gate, they immediately run off to the ladders, because the inner door is still closed, and I've never seen anyone else except me chopping it down. But by the time I chopped it I am all on my own, the soldiers all took off to the ladders. ?
If commanding the siege you can order them to stay, I guess, but under AI control the battering ram is redundant right now. ?
I guess there is still a lot of work to do regarding sieges. If anyone knows a way through the front door, please share your insights. I would love to take it for the sake of variety alone. ?