only in patch2:
unchanged:
--- a/core/tests/Drupal/Tests/Composer/Generator/OverlapWithTopLevelDependenciesTest.php
+++ b/core/tests/Drupal/Tests/Composer/Generator/OverlapWithTopLevelDependenciesTest.php
@@ -11,40 +11,22 @@
  */
 class OverlapWithTopLevelDependenciesTest extends TestCase {
 
-  /**
-   * Provides data for testOverlapWithTemplateProject().
-   */
-  public function templateProjectPathProvider() {
-    return [
-      [
-        'composer/Template/RecommendedProject',
-      ],
-      [
-        'composer/Template/LegacyProject',
-      ],
-    ];
-  }
-
   /**
    * Tests top level and core-recommended dependencies do not overlap.
-   *
-   * @dataProvider templateProjectPathProvider
-   *
-   * @param string $template_project_path
-   *   The path of the project template to test.
    */
-  public function testOverlapWithTemplateProject($template_project_path) {
+  public function testOverlapWithTemplateProject(): void {
     $root = dirname(__DIR__, 6);
-    // Read template project composer.json.
-    $top_level_composer_json = json_decode(file_get_contents("$root/$template_project_path/composer.json"), TRUE);
+
+    // Read RecommendedProject template composer.json.
+    $top_level_composer_json = json_decode(file_get_contents("$root/composer/Template/RecommendedProject/composer.json"), TRUE);
 
     // Read drupal/core-recommended composer.json.
     $core_recommended_composer_json = json_decode(file_get_contents("$root/composer/Metapackage/CoreRecommended/composer.json"), TRUE);
 
-    // Fail if any required project in the require section of the template
-    // project also exists in core/recommended.
+    // Fail if any required project in the 'require' section of the
+    // RecommendedProject template also exists in core/recommended.
     foreach ($top_level_composer_json['require'] as $project => $version_constraint) {
-      $this->assertArrayNotHasKey($project, $core_recommended_composer_json['require'], "Pinned project $project is also a top-level dependency of $template_project_path. This can expose a Composer bug. See https://www.drupal.org/project/drupal/issues/3134648 and https://github.com/composer/composer/issues/8882");
+      $this->assertArrayNotHasKey($project, $core_recommended_composer_json['require'], "Pinned project $project is also a top-level dependency of composer/Template/RecommendedProject. This can expose a Composer bug. See https://www.drupal.org/project/drupal/issues/3134648 and https://github.com/composer/composer/issues/8882");
     }
   }