Fix some minor issues

.github/workflows/check-release.yml

@@ -8,4 +8,4 @@ jobs:
       - name: lint
         uses: Roang-zero1/factorio-mod-luacheck@master
         with:
-          luacheckrc_url: https://raw.githubusercontent.com/ChaosWormz/teleport-request/master/.luacheckrc
+          luacheckrc_url: https://raw.githubusercontent.com/ChaosWormz/teleport-request/master/.luacheckrc

.luacheckrc

@@ -10,11 +10,9 @@ read_globals = {
 	string = {fields = {"split", "trim"}},
 	table = {fields = {"copy", "getn"}},
 
-	"minetest", "core",
-	"vector", "ItemStack",
-	"dump", "dump2",
+	"minetest", "vector",
 
 	"chat2", "gamehub", 
 	"intllib", "areas",
 
-}
+}

functions.lua

@@ -462,8 +462,10 @@ function tp.tpc_send(sender, coordinates)
 							tp.tpn_list[sender] = area.owner
 
 							minetest.after(tp.timeout_delay, function(name)
-								if tp.tpc_list[name] then
+								if tp.tpc_list[name] and tp.tpn_list[sender] then
 									tp.tpc_list[name] = nil
+									tp.tpn_list[sender] = nil
+
 									minetest.chat_send_player(sender, S("Request timed-out."))
 									minetest.chat_send_player(area.owner, S("Request timed-out."))