node preview translation needs to get translation of entity if it hasTranslation

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.

Moving to NW for the tests. Will post in the #testing slack channel if there is anyone interested in taking a look too.

Sorry that wasn't a duplicate issue. This issue is for core, the other is for contrib.

This patch/fix is still needed.

@joseph.olstad Perhaps what you expect is only valid for your specific use case?

When creating a node in French, the preview displays the original, not-yet-saved French translation of the node, and the tag is shown in the entity's language. Isn't that the expected behavior?

Based on #25 I think we need to understand what the expectation is here.

I've illustrated this quite vividly in the attached mp4 video with audio.

https://www.drupal.org/files/issues/2021-10-25/drupal_org_core_issue__31... →

Two runs in the video, one without the patch, the next with the patch.

Needs tests and also dependency injection.