Find a more reliable way to determine if a form element concerns a multilingual value

This issue is being reviewed by the kind folks in Slack, #needs-review-queue-initiative. We are working to keep the size of Needs Review queue [2700+ issues] to around 400 (1 month or less), following Review a patch or merge request → as a guide.

So the proposed use case sounds like it would be better to have an alter hook to edit this variable?

Tagging for subsystem maintainer review

Either way it will require tests too.

Re-roll Patch #9 and interdiff file not generate...

Patch #9 not applied
- The following problem appears...
( error: patch failed: core/modules/content_translation/src/ContentTranslationHandler.php:563
error: core/modules/content_translation/src/ContentTranslationHandler.php: patch does not apply )

Re-roll Patch #13 due to Failed Patch.

+++ b/core/modules/content_translation/src/ContentTranslationHandler.php
@@ -564,11 +565,9 @@ public function entityFormAlter(array &$form, FormStateInterface $form_state, En
-    //   multilingual value.
-    if (!isset($ignored_types)) {
+    if (empty($ignored_types)) {
       $ignored_types = array_flip(['actions', 'value', 'hidden', 'vertical_tabs', 'token', 'details', 'link']);
     }

The default array of types can be in the default argument to Settings::get().

Having said that, putting this in settings doesn't allow modules to alter it. I think it would be better as a container parameter or similar.