only in patch2:
unchanged:
--- a/src/Tests/FlagFieldEntryTest.php
+++ b/src/Tests/FlagFieldEntryTest.php
@@ -143,7 +143,7 @@ class FlagFieldEntryTest extends WebTestBase {
    */
   public function doAddFields() {
     // Check the Field UI tabs appear on the flag edit page.
-    $this->drupalGet('admin/structure/flags/manage/' . $this->id);
+    $this->drupalGet('admin/structure/flags/manage/' . $this->id . '/fields');
     $this->assertText(t("Manage fields"), "The Field UI tabs appear on the flag edit form page.");
 
     $this->fieldUIAddNewField('admin/structure/flags/manage/' . $this->id, $this->flagFieldId, $this->flagFieldLabel, 'text');