The Inline form error of a required, limited multiple file widget is rendered twice

Using Drupal 10.1
Enabling the file and inline_form_errors modules
I have created a block with a multiple-file field. Upon adding this new block and saving without adding a file the error displays as expected.

This should not be postponed as the latest comment says it can be reproduced in several core themes. Updated IS to reflect this.

I have been able to recreate the issue in 11.x

I would like to take this on.

I can confirm this is happening whether or not client side JS is running.

The reason we do not experience the issue in claro is because they have a workaround since before it was brought into Drupal core.

This is when the workaround was introduced: https://git.drupalcode.org/project/claro/-/commit/3bb63fdf6ecadd9a9ba87d...

The fix for this should also include removing that workaround code.