Fix Huawei WebCRT hop login echo doubling and safer Change-now handling.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_cli_hop_target_auth.py

@@ -131,6 +131,30 @@ class HuaweiStelnetAuthTests(unittest.TestCase):
         sent = [c.args[1] for c in mock_send.call_args_list]
         self.assertEqual(sent, ["ipran", "Y", "N", "secret"])
 
+    @patch("netx_api.ne_session_connect._read_channel")
+    @patch("netx_api.ne_session_connect._send_line")
+    def test_answers_password_change_after_login(
+        self,
+        mock_send: MagicMock,
+        mock_read: MagicMock,
+    ) -> None:
+        """Huawei ``Change now? [Y/N]:`` after password must not hang auth until timeout."""
+        chunks = [
+            "Please input the username:",
+            "Enter password:",
+            "Change now? [Y/N]:",
+            "<HW-TARGET>\n",
+        ]
+        mock_read.side_effect = lambda *_a, **_k: chunks.pop(0) if chunks else ""
+        conn = MagicMock()
+        seen: list[str] = []
+        _interactive_target_auth(conn, "admin", "secret", progress_cb=seen.append)
+        self.assertEqual(
+            [c.args[1] for c in mock_send.call_args_list],
+            ["admin", "secret", "N"],
+        )
+        self.assertTrue(any("password-change" in p for p in seen))
+
 
 if __name__ == "__main__":
     unittest.main()