Localize some accidental global vars

mods/core/player.lua

@@ -58,7 +58,7 @@ function player_update_visuals(pl)
 	player_model[name] = default_model
 	player_anim[name] = 0 -- Animation will be set further below immediately
 	player_sneak[name] = false
-	prop = {
+	local prop = {
 		mesh = default_model,
 		textures = default_textures,
 		visual = "mesh",

mods/mf_skins/init.lua

@@ -13,7 +13,11 @@ if io.open(textures_config, "r") ~= nil then
 	io.close()
 end
 
-mf_skins_table = mf_skins_table or {}
+if minetest.global_exists("mf_skins_table") then
+	mf_skins_table = mf_skins_table
+else
+	mf_skins_table = {}
+end
 
 local save_skins = function()
 	print(dump(mf_skins_table))