Prevent migrated files from having an incorrect value at file_managed.filename

The Migrate Drupal Module was approved for removal in 📌 [Policy] Migrate Drupal and Migrate Drupal UI after Drupal 7 EOL Fixed .

This is Postponed. The status is set according to two policies. The Remove a core extension and move it to a contributed project → and the Extensions approved for removal → policies.

The deprecation work is in 📌 [12.x] [Meta] Tasks to remove Migrate Drupal module Postponed and the removal work in 📌 [12.x] [Meta] Tasks to remove Migrate Drupal module Postponed .

Migrate Drupal will not be moved to a contributed project. It will be removed from core after the Drupal 12.x branch is open.