Issue #3342516: Actually correct packages.drupal.org purging

project_composer.module

@@ -309,7 +309,7 @@ function project_composer_manage_provider_includes($includes) {
       $wrapper = file_stream_wrapper_get_instance_by_uri($path);
       watchdog('project_composer', '%path does not exist or is not writable.', ['%path' => $wrapper->realpath()], WATCHDOG_ERROR);
     }
-    project_composer_purge_packages_url(url(preg_replace('|public://|', '', $path), ['absolute' => TRUE]));
+    project_composer_purge_packages_url(url(preg_replace('|public://packages/|', '', $path), ['absolute' => TRUE]));
   }
 }