'ignore_map' => TRUE,
] + $this->source;
$definition['destination']['plugin'] = 'null';
+ $definition['idMap']['plugin'] = 'null';
if (\Drupal::moduleHandler()->moduleExists('field')) {
$definition['source']['plugin'] = 'd7_field_instance';
$field_migration = $this->migrationPluginManager->createStubMigration($definition);