save game rematch id

app/game/GameRepo.scala

@@ -117,6 +117,10 @@ class GameRepo(collection: MongoCollection)
     )
   }
 
+  def saveNext(game: DbGame, nextId: String): IO[Unit] = io {
+    update(idSelector(game), $set("next" -> nextId))
+  }
+
   def initialFen(gameId: String): IO[Option[String]] = io {
     primitiveProjection[String](idSelector(gameId), "initialFen")
   }

app/setup/Rematcher.scala

@@ -44,6 +44,7 @@ final class Rematcher(
     _ ← gameRepo insert nextGame
     nextId = nextGame.id
     _ ← gameRepo denormalizeStarted nextGame
+    _ ← gameRepo.saveNext(pov.game, nextGame.id)
     _ ← timelinePush(nextGame)
     // messenges are not sent to the next game socket
     // as nobody is there to see them yet