No, it occurs the first time I'm asked to pick a policy...it's a gamebreaker so I can't explore it further. I might try playing David and seeing if the presence of Sumer reproduces the issue.
These are true statements that apply only when both the Israel mod and the Sumer mod are...
Well that's a small issue, because say twenty turns after it's built, your borders have expanded beyond the original enclosure, and then you can't tell the difference. You know what? Forget I asked, it's a quibble of tribbling significance but I only now came to my senses.
But if you have five cities all connected by 1-tile wide roads (or 2-tile, etc) and build the Wall in the middle (like the capital) the AI makes a decision of what to enclose, excluding a lot of territory. I'm trying to get a handle on how to predict what it will and won't enclose..