Query exception if no translations in active language

Problem/Motivation

If a language with no existing translation in any menu is activated in the pagetree, an InvalidQueryException is thrown:

Drupal\Core\Database\InvalidQueryException: Query condition 'nfr.vid IN ()' cannot be empty. in Drupal\Core\Database\Query\Condition->condition() (Zeile 117 in /var/www/public/core/lib/Drupal/Core/Database/Query/Condition.php).

This is due to line 261 in Service/Tree.php:
$query->condition('nfr.vid', $vids, 'IN');
where $vid is empty if there are no translations of any nodes in the language in the menus selected for the pagetree.

Proposed resolution

Skip language if getRevisionIds() returns an empty array.

Remaining tasks

1. Add condition to skip language if getRevisionIds() returns an empty array