[1.20d]Minor Cities stuck on Level 1

[zgrssd]

It seems like the Minor Regimes never upgrade the city level.

I had several cases where a Conquered Level 1 city, had a Level 2 Dome Farm - and then a 2nd Level 1 Dome Farm, because they could not upgrade it to account for more population.

Both of those had enough population (50k+), so they instantly asked for Upgrades 2 turns in a row. So I think Free Cities need to properly Upgrade the Level, to enable T3 Dome Farms.