In some cases, if there's an orphaned menu link, there will be PHP warnings generated in MenuLinkContentForm.
Deprecated function: explode(): Passing null to parameter #2 ($string) of type string is deprecated in Drupal\menu_link_content\Form\MenuLinkContentForm->buildEntity()
Warning: Undefined array key 1 in Drupal\menu_link_content\Form\MenuLinkContentForm->buildEntity()
1. Install group_content_menu
2. Create a link in the main menu, take note of the ID
3. Run the following using your ID: drush php:eval '$link=\Drupal\menu_link_content\Entity\MenuLinkContent::load(YOUR_ID);$link->set("menu_name","group_menu_link_content-999");$link->save();'
4. Go to /admin/structure/menu/item/YOUR_ID/edit, and re-save the link.
5. View your logs, notice the php warnings
Check if the menu_parent value if set before passing the value into explode
Open a PR
Needs work
11.0 🔥
Thank you for reporting. Usually with tickets like these we need to do some research and find why it’s not set vs just putting in a check. Has it may be masking a larger issue.