(test for old input on failed login)

app/Http/Controllers/Auth/LoginController.php

@@ -16,7 +16,7 @@ class LoginController extends Controller
     public function login()
     {
         if (! Auth::attempt(request(['email', 'password']))) {
-            return redirect('/login')->withErrors([
+            return redirect('/login')->withInput(request(['email']))->withErrors([
                 'email' => ['These credentials do not match our records.'],
             ]);
         }