backport fix

fixed password refill in login form when wrong password was given

It's better to not refill the passwords on wrong credentials given.
Standard behaviour on all pages are making the password blank

rhodecode/controllers/login.py

@@ -146,7 +146,7 b' class LoginController(BaseController):'
                 form_result['active'] = c.auto_active
                 UserModel().create_registration(form_result)
                 h.flash(_('You have successfully registered into RhodeCode'),
-                            category='success')
+                        category='success')
                 Session().commit()
                 return redirect(url('login_home'))