1. Use Ibexa Experience 4.6.7.
2. Add a second language (e.g. Polish pol-PL).
3. Create a folder in eng-GB. Add a translation for it.
4. Use the attached testController and open /test route in the browser, or:
5. Create a route where you load content via ContentService with the new language and read the content language

$content = $contentService->loadContent($contentId, ['pol-PL']);
$content->getField('name')->getLanguageCode()

1. 1. get mainLocation from content then use the location to get content and its language

$location = $content->getContentInfo()->getMainLocation();
$location->getContent()->getField('name')->getLanguageCode()

Actual result
The outputted language is different when reading from location.

Expected result
The outputted language is the same in both cases.