Fixed possible exploit in umbala elemental stone quest

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@7333 54d463be-8e91-2dee-dedb-b68131a5f0ec

npc/Changelog.txt

@@ -37,6 +37,7 @@ Musashiden
 Date		Added
 ======
 06/25
+	* Fixed possible exploit in umbala elemental stone quest [Playtester]
 	* Added a shop NPC to Prontera, it's required for the Hellion Quest. [MasterOfMuppets]
 06/24
 	* Fixed some typos and coordinates [Musashiden]

npc/cities/umbala.txt

@@ -965,6 +965,9 @@ um_in.gat,44,71,2	script	Utan Tribe Shaman	782,{
 	}
 	
 	next;
+
+	set .@need,0;
+
 	switch (select("Create Essence","Dismantle Elemental Stone","Nothing")) {
 	case 1:
 		mes "[Putsuchiritan]";