`ApiLayoutControllerGetTest` is not actually using what `ApiLayoutControllerTestBase` provides, leading to very confusing code
>>> [!note] Migrated issue
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<!-- Migrated from issue #3546139. -->
Reported by: [wim leers](https://www.drupal.org/user/99777)
Related to !60
>>>
<h3 id="overview">Overview</h3>
<p><em>Discovered in <span class="drupalorg-gitlab-issue-link drupalorg-gitlab-link-wrapper"><a href="https://git.drupalcode.org/project/canvas/-/work_items/3541057" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3541057</a></span>.</em></p>
<p>See write-up about the WTF: <a href="https://git.drupalcode.org/project/canvas/-/merge_requests/58/diffs#note_585627">https://git.drupalcode.org/project/canvas/-/merge_requests/58/diffs#note_585627</a></p>
<p>Related: <span class="drupalorg-gitlab-issue-link drupalorg-gitlab-link-wrapper"><a href="https://git.drupalcode.org/project/canvas/-/work_items/3531679" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3531679</a></span></p>
<h3 id="proposed-resolution">Proposed resolution</h3>
<h3 id="ui-changes">User interface changes</h3>
issue