Add an option to machine name elements to increment with a delta instead of failing validation

Thank you for creating this issue to improve Drupal.

We are working to decide if this task is still relevant to a currently supported version of Drupal. There hasn't been any discussion here for over 8 years which suggests that this has either been implemented or is no longer relevant. Your thoughts on this will allow a decision to be made.

Since we need more information to move forward with this issue, the status is now Postponed (maintainer needs more info). If we don't receive additional information to help with the issue, it may be closed after three months.

Thanks!

Since there has been no follow up in 3+ months going to close out, but don't worry we can always re-open!

Thanks all

This bug actually still exists in Drupal 11, and in fact it's even more confusing, because the validation error happens off the screen for me. STR:

1. Install Standard.
2. Navigate to /admin/structure/types/manage/page/fields.
3. Click "Create a new field".
4. Click "Reference".
5. Type "Tags" in the label field.
6. Select "Taxonomy term" as the field type.
7. Click continue.

On my 13" laptop screen, the form jumps so that the part that's failing validation (the machine name generator) is actually off the page. If I didn't already know what the bug was, I'd have no idea what the heck was happening, why clicking "Continue" did nothing, because there is no visible element explaining why it's not working. I have to scroll back up to see the machine name field that I (as a contributor to Drupal 8) know is there and failing inline form validaiton. That's quite the UX bug.