单击主模板文件中的“添加...参数”后，添加参数的格式不正确

The format of the added parameter is incorrect after clicking "Add... parameters" in main template file

OS：所有构建版本：20220512.1回归：预览发布

repro步骤：

Open a child template with one or more parameters -> Create a main template with a linked template deployment using the linked template snippet. Click on the "parameters" -> Click the light bulb -> Select "Add... parameters". Check whether the format of the added parameter is correct.

期望：添加参数的格式正确。

Actual: The format of the added parameter is incorrect.