Translation from other languages than default language does not work

[peterbenke]

Translation from other languages than default language does not work.

Assuming you have configured the following languages, for example:

• Default language
• French language
• Czech

Translating from the default language to French or Czech works perfectly.
However, it is not possible to translate from French to Czech.

The cause lies in the function:
Classes/Hooks/TranslateHook.php->processTranslateTo_copyAction()
The default language is always defined as the source language here.

$sourceLanguageRecord = $this->languageService->getSourceLanguage( $siteInformation['site'] );

Thank you.