Use the user display name instead of the username on the user authoring information in the node edit form

At this time we will need a D10 MR of the issue. Since the work has been in MRs lets try and keep them there. But from the changes I saw they look good. Still need to do a full test and code review.

Liam Morland → made their first commit to this issue’s fork.

I have rebased the branch so that the existing commits are on top of 11.x. I think @Kristen Pol will need to edit the merge request so that it targets 11.x instead of 9.2.x.

Sorry for the delay... version changed.

acbramley → changed the visibility of the branch 9.2.x to hidden.

acbramley → changed the visibility of the branch 11.x to hidden.

Seems like a simple change, IS is clear

1) Drupal\Tests\node\Functional\NodeEditFormTest::testNodeAuthorDisplayName
Behat\Mink\Exception\ExpectationException: The string "<em>3</em>" was not found anywhere in the HTML response of the current page.
/builds/issue/drupal-3183509/vendor/behat/mink/src/WebAssert.php:888
/builds/issue/drupal-3183509/vendor/behat/mink/src/WebAssert.php:363
/builds/issue/drupal-3183509/core/tests/Drupal/Tests/WebAssert.php:559
/builds/issue/drupal-3183509/core/modules/node/tests/src/Functional/NodeEditFormTest.php:320
FAILURES!
Tests: 4, Assertions: 105, Failures: 1.

Shows the test coverage

See no issue.