[1.0.7.9] Cities settling within 3 tiles of each other - not a bug

[FizzSerpent]

Saw two russian cities that were far too close. Went back a turn, and checked the settler lens and found two tiles which are valid for settling, but shouldn't be.

Pics attached.

The offending tiles are just south of Smolensk -- there's a valid settling spot according to the settler lens that's too close to Smolensk -- as well as just east of Smolensk -- there's a valid settling spot that's too close to Sana'a in the north.

Then, on the AIs turn, they actually settle south of Smolensk, in a tile that was previously displayed as illegal for settling!

 

[cain3456]

Not a bug. As long as they are on separate landmasses, a city can be settled within 3 tiles. This has always been the case in Civ 6.