This is really minor bug I noticed in SP:
Marverni was besieging me (with his god) in his former capital. I took his last province, and in my messages for the turn I had:
Plaguestink the God of Marverni has been permanently vanquished. ...
But now when I right-click on the former Marveni capital, I cannot buy Defense there, and I get a message about his army and a white indy flag on the province as in the jpg below. Next turn will be fine, the imaginary army should be gone (I think I've seen this before).
