SetUrl() does not update new URLs properly within same Session() object about cpr HOT 1 OPEN

TEST(SessionGetTests, GetMultipleTimes1) {
    Url url{server->GetBaseUrl() + "/hello.html"};
    Session session;
    session.SetUrl(url);
    std::string expected_text{"Hello world!"};

    Response response = session.Get();
    EXPECT_EQ(expected_text, response.text);
    EXPECT_EQ(url, response.url);
    EXPECT_EQ(std::string{"text/html"}, response.header["content-type"]);
    EXPECT_EQ(200, response.status_code);
    EXPECT_EQ(ErrorCode::OK, response.error.code);

    Url url2{server->GetBaseUrl() + "/url_post.html"};
    session.SetUrl(url2);
    session.SetPayload({{"x", "5"}});
    std::string expected_text2{
            "{\n"
            "  \"x\": 5\n"
            "}"};

    response = session.Post();
    EXPECT_EQ(expected_text2, response.text);
    EXPECT_EQ(url2, response.url);
    EXPECT_EQ(std::string{"application/json"}, response.header["content-type"]);
    EXPECT_EQ(201, response.status_code);
    EXPECT_EQ(ErrorCode::OK, response.error.code);
}