og-8.x-1.x-dev/og.links.task.yml

og.og_admin_routes:
  deriver: \Drupal\og\Plugin\Derivative\OgLocalTask
entity.og_membership.edit_form:
  route_name: entity.og_membership.canonical
  base_route: entity.og_membership.canonical
  title: Edit
entity.og_membership.delete_form:
  route_name: entity.og_membership.delete_form
  base_route: entity.og_membership.canonical
  title: Delete
  weight: 10