The menu items to be cloned is loaded with a `loadByProperties` method which returns the items in the same order as the `menu_link_content` entity ID. During the clone process, the duplicated menu items may attempt to set a parent item that does not exist yet.
1. Create several menu items for a menu to be cloned.
2. Manipulate the weights and hierarchy so that some menu items that were created later, are parents for earlier menu items.
3. Run the clone process
Load the menu tree and process menu items in the same order as the hierarchy.
Test and potentially implement supplied patch
Needs review
3.2
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Also seeing the error mentioned:
```
TypeError: Argument 1 passed to Drupal\menu_link_clone\Form\EntityMenuLinkCloneForm::addSubtreeItemsToArray()
```
when applying Patch #2
Patch #3 not applying:
Drupal core 9.5
Menu Link Clone: ^3.2