Index: modules/simpletest/tests/upgrade/upgrade.test
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/tests/upgrade/upgrade.test,v
retrieving revision 1.8
diff -u -p -r1.8 upgrade.test
--- modules/simpletest/tests/upgrade/upgrade.test	1 Oct 2010 18:37:22 -0000	1.8
+++ modules/simpletest/tests/upgrade/upgrade.test	8 Oct 2010 06:21:25 -0000
@@ -381,5 +381,9 @@ class BasicUpgradePath extends UpgradePa
     $this->assertText(t('Reports'));
     $this->assertText(t('Structure'));
     $this->assertText(t('Modules'));
+
+    // Confirm that no {menu_links} entry exists for user/autocomplete.
+    $result = db_query('SELECT COUNT(*) FROM {menu_links} WHERE link_path = :user_autocomplete', array(':user_autocomplete' => 'user/autocomplete'))->fetchField();
+    $this->assertFalse($result, t('No {menu_links} entry exists for user/autocomplete'));
   }
 }
Index: modules/system/system.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.install,v
retrieving revision 1.515
diff -u -p -r1.515 system.install
--- modules/system/system.install	6 Oct 2010 13:38:40 -0000	1.515
+++ modules/system/system.install	8 Oct 2010 06:21:25 -0000
@@ -2851,6 +2851,19 @@ function system_update_7062() {
 }
 
 /**
+ * Delete {menu_links} records for 'type' => MENU_CALLBACK which would not appear in a fresh install.
+ */
+function system_update_7063() {
+  // For router items where 'type' => MENU_CALLBACK, {menu_router}.type is
+  // stored as 4 in Drupal 6, and 0 in Drupal 7. Fortunately Drupal 7 doesn't
+  // store any types as 4, so delete both.
+  $result = db_query('SELECT ml.mlid FROM {menu_links} ml INNER JOIN {menu_router} mr ON ml.router_path = mr.path WHERE ml.module = :system AND ml.customized = 0 AND mr.type IN(:callbacks)', array(':callbacks' => array(0, 4), ':system' => 'system'));
+  foreach ($result as $record) {
+    db_delete('menu_links')->condition('mlid', $record->mlid)->execute();
+  }
+}
+
+/**
  * @} End of "defgroup updates-6.x-to-7.x"
  * The next series of updates should start at 8000.
  */