feat: assignment call off

src/Form/AssignmentType.php

@@ -37,6 +37,7 @@ class AssignmentType extends AbstractType
                 'choices' => [
                     'Entwurf' => Assignment::STATUS_DRAFT,
                     'veröffentlicht' => Assignment::STATUS_PUBLISHED,
+                    'abgesagt' => Assignment::STATUS_CALLED_OFF,
                 ],
             ])
             ->add('availableDispositions', IntegerType::class, [