我对 VSTS 手动测试用例有疑问。当我尝试编辑一个时，我收到如下错误消息：
字典中已存在具有相同键的元素
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会话 ID：73288d72-580f-42fb-9aeb-f5cadb6b3bc5
如果测试步骤包含参数，我只会遇到这个问题。刷新页面并重新打开测试用例后，颜色代码为黑色，并且不显示保存按钮。此外，下拉列表...是空的。
现有的测试很好，运行它们也是可能的。处理错误、用户故事和任务很好。
截图可以在这里找到
有没有办法解决这个问题？