Fix cross lobby crash on /letleave

mods/hiddenseeker/commands.lua

@@ -33,7 +33,7 @@ subgames.register_chatcommand("letleave", {
   lobby = "hiddenseeker",
 	func = function(name, param)
     local player = minetest.get_player_by_name(param)
-		if player then
+		if player and player_lobby[param] == "hiddenseeker" then
       hiddenseeker.leave_game(player)
       hiddenseeker.win(hiddenseeker.player_lobby[param])
       hiddenseeker.join_game(player, hiddenseeker.player_lobby[param])

mods/mesewars/init.lua

@@ -139,7 +139,7 @@ subgames.register_chatcommand("letleave", {
   lobby = "mesewars",
 	func = function(name, param)
     local player = minetest.get_player_by_name(param)
-		if player then
+		if player and player_lobby[param] == "mesewars" then
       mesewars.to_lobby(player)
       mesewars.leave_pre_player(param)
       minetest.chat_send_player(name, "You have left the player "..param)

mods/skywars/commands.lua

@@ -34,7 +34,7 @@ subgames.register_chatcommand("letleave", {
   lobby = "skywars",
 	func = function(name, param)
     local player = minetest.get_player_by_name(param)
-		if player then
+		if player and player_lobby[param] == "skywars" then
       local lobby = skywars.player_lobby[param]
       skywars.leave_game(player)
       skywars.win(lobby)

mods/survivalgames/commands.lua

@@ -32,7 +32,7 @@ subgames.register_chatcommand("letleave", {
   lobby = "survivalgames",
 	func = function(name, param)
     local player = minetest.get_player_by_name(param)
-		if player then
+		if player and player_lobby[param] == "survivalgames" then
       survivalgames.leave_game(player)
       survivalgames.win(survivalgames.player_lobby[param])
       survivalgames.join_game(player, survivalgames.player_lobby[param])