fix(Core/Items): Special bags cannot be stored inside other special b… (#12032)

fix(Core/Items): Special bags cannot be stored inside other special bags.

Fixes #11946

src/server/game/Entities/Item/Item.cpp

@@ -183,10 +183,20 @@ bool ItemCanGoIntoBag(ItemTemplate const* pProto, ItemTemplate const* pBagProto)
     switch (pBagProto->Class)
     {
         case ITEM_CLASS_CONTAINER:
+        {
+            if (pBagProto->SubClass == ITEM_SUBCLASS_CONTAINER)
+            {
+                return true;
+            }
+            else
+            {
+                if (pProto->Class == ITEM_CLASS_CONTAINER)
+                {
+                    return false;
+                }
+
                 switch (pBagProto->SubClass)
                 {
-                case ITEM_SUBCLASS_CONTAINER:
-                    return true;
                     case ITEM_SUBCLASS_SOUL_CONTAINER:
                         if (!(pProto->BagFamily & BAG_FAMILY_MASK_SOUL_SHARDS))
                             return false;
@@ -222,7 +232,15 @@ bool ItemCanGoIntoBag(ItemTemplate const* pProto, ItemTemplate const* pBagProto)
                     default:
                         return false;
                 }
+            }
+        }
         case ITEM_CLASS_QUIVER:
+        {
+            if (pProto->Class == ITEM_CLASS_QUIVER)
+            {
+                return false;
+            }
+
             switch (pBagProto->SubClass)
             {
                 case ITEM_SUBCLASS_QUIVER:
@@ -237,6 +255,8 @@ bool ItemCanGoIntoBag(ItemTemplate const* pProto, ItemTemplate const* pBagProto)
                     return false;
             }
         }
+    }
+
     return false;
 }