Label change does not update machine name automatically when creating new search pages

Thanks for reporting, can we add a test case showing the bug

Attempted to write the test, needs to be reviewed.

Seems to have test failures

Instead of its own file and own test is there not an existing test that could be expanded

The search module does not yet have any functional JavaScript tests. So, this is the only file for it. However, the search module has another test type, functional, kernel, and unit, where this won't fit AFAIK.

Hello,
Tested and verified on Drupal 11,
MR applied successfully,
and working as expected "machine name is generated accordingly."

Steps to reproduce-
Navigate to /admin/config/search/pages.
Select a page type (Content, Help, or Users) under "Search page type".
Observe that the "Label" field is autofilled based on the selected page type and the machine name is generated accordingly.
Change the "Label" field.
Notice that the machine name does not update to reflect the new label.
The only way to update the machine name is to click "Edit" next to the machine name field and manually enter it.

Check attachments

RTBC+