When viewing a content object in the backend, in the translation modal inside the translation tab, the radio buttons cannot be checked anymore.

For the target language, the tick in the radio label appears, but the state of the radio button does not change.

For the base language, nothing happens at all.

The reason is that the admin.location.add.translation.js file has been changed.

The following line has no effect:

radio.checked = checked;

Previously, the setAttribute and removeAttribute functions have been used.