Issue #3413126 by Wim Leers, phenaproxima: Add "maintain_index_table" to...

Issue #3413126 by Wim Leers, phenaproxima: Add "maintain_index_table" to taxonomy_settings migration

core/modules/taxonomy/migrations/taxonomy_settings.yml

@@ -9,10 +9,15 @@ source:
   variables:
     - taxonomy_override_selector
     - taxonomy_terms_per_page_admin
+    - taxonomy_maintain_index_table
   source_module: taxonomy
 process:
   override_selector: taxonomy_override_selector
   terms_per_page_admin: taxonomy_terms_per_page_admin
+  maintain_index_table:
+    plugin: default_value
+    default_value: true
+    source: taxonomy_maintain_index_table
 destination:
   plugin: config
   config_name: taxonomy.settings

core/modules/taxonomy/tests/src/Kernel/Migrate/MigrateTaxonomyConfigsTest.php

@@ -34,6 +34,7 @@ public function testTaxonomySettings() {
     $config = $this->config('taxonomy.settings');
     $this->assertSame(100, $config->get('terms_per_page_admin'));
     $this->assertFalse($config->get('override_selector'));
+    $this->assertTrue($config->get('maintain_index_table'));
     $this->assertConfigSchema(\Drupal::service('config.typed'), 'taxonomy.settings', $config->get());
   }