@David *******
Hey this is really fascinating! I'm glad to be wrong when it leads to learning something. I did some searching and it appears the UK may be the only one like this though, but yes if 1 exists I'm wrong. Anyway I expected it to be some crazy country like Turkmenistan and not a "free"/"modern" country like the UK! If you thought there were many: you might be thinking about a legal right to stay after rather than just actually legally marrying? That's a longer list, but it wasn't Op's question :)