th:field valid is replacing th:name attribute in radio button

Hi,

I have multiple groups of radio buttons in my form and I need to selected values inside an array. when I set the th:field property it replaces the name attribute. Whatever I set to name it replaced by th:field attribute which results in having only one radio button group for the whole form. I replicated the same. Can someone suggest what to do here so that it shoudn't replace the name attribute. Or it is the expected behaviour. I am new to thymeleaf and didn't find any answer to this problem

<ul>
            <li th:each="radioValue,s: ${singleSelectAllValues}">
                <input type="radio"
                       th:field="*{multiRadioSelectedValues}"
                       th:name="${'first'}"
                       th:id="${'first'+s.count}"

                       th:value="${radioValue}" />
                <label

                        th:text="${radioValue}"></label>
            </li>
        </ul>
        <div>second</div>
        <ul>
            <li th:each="radioValue,s: ${singleSelectAllValues}">
                <input type="radio"
                       th:field="*{multiRadioSelectedValues}"
                       th:name="${'second'}"
                       th:id="${'second'+s.count}"

                       th:value="${radioValue}" />
                <label

                        th:text="${radioValue}"></label>
            </li>
        </ul>

the form backing object is

import lombok.Data;

@Data
public class FormCommand {
    String textField;

    String textareaField;

    String datetimeField;

    String colorField;

    boolean singleCheckboxField;

    String[] multiCheckboxSelectedValues;

    String radioButtonSelectedValue1;
    String radioButtonSelectedValue2;
    String[] multiRadioSelectedValues;
    String dropdownSelectedValue;
}