Fix #925: Dupe with item containing items in machine slots (#926)

Author: Swedz

src/main/java/aztech/modern_industrialization/items/ItemContainingItemHelper.java

@@ -54,7 +54,7 @@ default boolean handleOtherStackedOnMe(ItemStack stackBarrel, ItemStack itemStac
             Mutable<ItemStack> ref = new MutableObject<>(itemStack);
             boolean result = handleClick(player, stackBarrel, ref);
             cursorStackReference.set(ref.getValue());
-            slot.setChanged();
+            slot.set(stackBarrel);
             return result;
         } else {
             return false;