*Fix a bug that dk's ghoul generates energy twice per tick.

--HG--
branch : trunk

src/game/ObjectMgr.cpp

@@ -8622,9 +8622,17 @@ bool ObjectMgr::CheckDB() const
     if(!cInfo || cInfo->faction_A != 21)
         return false;
 
-    cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(28768);
+    cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(28768); // Dark Rider of Acherus
     if(!cInfo || !cInfo->ScriptID)
         return false;
 
+    cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(32627); // Wintergrasp Siege Engine
+    if(!cInfo || !cInfo->spells[0] || cInfo->VehicleId != 117)
+        return false;
+
+    cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(33114); // Flame Leviathan Seat
+    if(!cInfo || cInfo->VehicleId != 341)
+        return false;
+
     return true;
 }