如何使用select2库多选重复的值

<link href="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js"></script>

<select id="mySelect" multiple>
  <option value="apple">Apple</option>
  <option value="banana">Banana</option>
  <option value="apple">Apple</option>
  <option value="orange">Orange</option>
</select>

$(document).ready(function() {
  $('#mySelect').select2();

  // 监听 select2:select 事件
  $('#mySelect').on('select2:select', function(e) {
    // 获取选中的选项
    var selectedOption = e.params.data;

    // 将选中的选项添加回选项列表
    var option = $('<option>', {
      value: selectedOption.id,
      text: selectedOption.text
    });

    // 将新选项插入到 select 元素的末尾
    $('#myText').append(option);
  });
});