When we compare more recent on with most last one it start giving this error
The website encountered an unexpected error. Please try again later.
InvalidArgumentException: Invalid translation language (en) specified. in Drupal\Core\Entity\ContentEntityBase->getTranslation() (line 873 of core/lib/Drupal/Core/Entity/ContentEntityBase.php).
Drupal\diff\Controller\PluginRevisionController->compareEntityRevisions(Object, Object, Object, 'split_fields') (Line: 49)
Drupal\diff\Controller\NodeRevisionController->compareNodeRevisions(Object, Object, Object, 'split_fields')
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 573)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 151)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 67)
Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708)
Drupal\Core\DrupalKernel->handle(Object) (Line: 18)
Create a node for default language my case its for Germany(de)
Change in that node 2 or more times so revisions data created
Now create translation of that node (my case in english)
now go to German page and view german revisions
once you start compare first one with most last one you will got this error
Active
1.1
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
I have a patch for latest version to at least fix this by pulling the untranslated content if error pulling translated version.
While I agree errors like this might have significant impact, I don't think we need to mark this as critical. Also, all contributions to this project need to be via a MR so tests can execute. Patch files won't trigger tests.
Also, please review https://git.drupalcode.org/project/diff#contribution-guidelines.