Core/GameObjects: only add GameObject uses when the triggered cast is successful

src/server/game/Entities/GameObject/GameObject.cpp

@@ -1860,6 +1860,7 @@ void GameObject::Use(Unit* user)
     Unit* spellCaster = user;
     uint32 spellId = 0;
     bool triggered = false;
+    bool addUse = false;
 
     if (Player* playerUser = user->ToPlayer())
     {
@@ -2296,9 +2297,8 @@ void GameObject::Use(Unit* user)
             if (m_goInfo->spellcaster.playerCast != 0 && user->IsPlayer())
                 caster = user;
 
-            if (caster->CastSpell(user, spellId) == SPELL_CAST_OK)
-                AddUse();
-            return;
+            addUse = true;
+            break;
         }
         case GAMEOBJECT_TYPE_MEETINGSTONE:                  //23
         {
@@ -2467,10 +2467,14 @@ void GameObject::Use(Unit* user)
     if (Player* player = user->ToPlayer())
         sOutdoorPvPMgr->HandleCustomSpell(player, spellId, this);
 
+    SpellCastResult castResult;
     if (spellCaster)
-        spellCaster->CastSpell(user, spellId, triggered);
+        castResult = spellCaster->CastSpell(user, spellId, triggered);
     else
-        CastSpell(user, spellId);
+        castResult = CastSpell(user, spellId);
+
+    if (addUse && castResult == SPELL_CAST_OK)
+        AddUse();
 }
 
 void GameObject::SendCustomAnim(uint32 anim)