message: Remove unnecessary on: init for DRM initializing tasks
diff: @@ -47,7 +47,7 @@ export default class DraftRegistrationManager {
  return pageInputFailed || metadataInputFailed;
  }
  - @task({ on: 'init' })
  + @task
  initializePageManagers = task(function *(this: DraftRegistrationManager) {
  const { draftRegistration, node } = yield this.draftRegistrationAndNodeTask;
  set(this, 'draftRegistration', draftRegistration);
  @@ -70,7 +70,7 @@ export default class DraftRegistrationManager {
  set(this, 'pageManagers', pageManagers);
  });
  - @task({ on: 'init' })
  + @task
  initializeMetadataChangeset = task(function *(this: DraftRegistrationManager) {
  const { draftRegistration } = yield this.draftRegistrationAndNodeTask;
  const metadataChangeset = buildChangeset(draftRegistration, {});
  