Revert "Issue #2971338 by Jo Fitzgerald, quietone, joachim:...
Revert "Issue #2971338 by Jo Fitzgerald, quietone, joachim: MigrationLookupTest::testMultipleSourceIds() uses wrong class for mocking"
This reverts commit 6a8fe612.
2 merge requests!7452Issue #1797438. HTML5 validation is preventing form submit and not fully...,!789Issue #3210310: Adjust Database API to remove deprecated Drupal 9 code in Drupal 10