Fix ability to use builtin inventory lists to store items between matches or craft

mods/ctf_map/give_initial_stuff.lua

@@ -7,6 +7,10 @@ setmetatable(give_initial_stuff, {
 		inv:set_list("main",  {})
 		inv:set_list("craft", {})
 
+		inv:set_size("craft", 1)
+		inv:set_size("craftresult", 0)
+		inv:set_size("hand", 0)
+
 		local items = give_initial_stuff.get_stuff()
 
 		for _, item in pairs(items) do