Why the optional @apiQuery field also append to @apiSampleRequest

When I have the optional query param. If I do not specify it in "Send a Sample Request", after clicking "Send" button, I see the param is also in the request URL.

See the below example:

• @apiQuery {Number} [testName] Test name.

https://localhost:8885/api/testcore/getTestDetails?testName=

• Version of apidoc: apidoc 0.54.0
• Operating system: Windows 10
• Node version: v14.21.2
• Browse: Chrome