- Fixed skill usage being blocked if you use Weapon Refine and there is nothing available to upgrade.

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@9839 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/map/clif.c

@@ -5372,9 +5372,10 @@ int clif_item_refine_list(struct map_session_data *sd)
 	}
 	WFIFOW(fd,2)=c*13+4;
 	WFIFOSET(fd,WFIFOW(fd,2));
+	if (c > 0) {
 		sd->menuskill_id = WS_WEAPONREFINE;
 		sd->menuskill_lv = skilllv;
-
+	}
 	return 0;
 }