Fix pressure plates calling receptor_on on a regular basis

Author: Jeija

mesecons_pressureplates/init.lua

@@ -22,7 +22,7 @@ pp_on_timer = function (pos, elapsed)
 	if objs[1] == nil and node.name == basename .. "_on" then
 		minetest.add_node(pos, {name = basename .. "_off"})
 		mesecon.receptor_off(pos, mesecon.rules.pplate)
-	else
+	elseif node.name == basename .. "_off" then
 		for k, obj in pairs(objs) do
 			local objpos = obj:getpos()
 			if objpos.y > pos.y-1 and objpos.y < pos.y then