Issue #3358581 by pfrenssen, _tarik_, a.dmitriiev, smustgrave, longwave,...

Issue #3358581 by pfrenssen, _tarik_, a.dmitriiev, smustgrave, longwave, larowlan: Deprecated function: array_slice(): Passing null to parameter #2 ($offset) of type int is deprecated in Drupal\Core\Config\Entity\Query\Query->execute()

(cherry picked from commit 6227621d)