Sub theme does not inherit Gin blocks and blocks placement
>>> [!note] Migrated issue
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<!-- Migrated from issue #3187880. -->
Reported by: [Ralf Eisler](https://www.drupal.org/user/1271552)
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>I am working with a Gin sub-theme to just tweak some CSS and Javascript.<br>
After the last update, the Secondary tabs were not displayed anymore in Paragraphs types.<br>
Finally, I reinstalled the sub-theme, but the Gin custom blocks were not inherited any more.<br>
Instead, all available blocks from the front-end theme appear in the Header region of the Gin sub-theme. </p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<p>First case:<br>
Uninstall Gin sub-theme in the project<br>
Reinstall Gin sub-theme in the project</p>
<p>Second case:<br>
Clean install of Drupal 9<br>
Generation of fresh Gin sub-theme with Drupal Console</p>
<p>In both cases, Gin custom-blocks are not inherited, and all available Blocks are placed in the header region.</p>
issue