REST query parameters not appended

The script in the example documentation given below does not append query parameters.

After creating a request object like below, and sending the request, the URL DOES NOT contain the query parameters. Can some please take a look?
Expected URL: http://jsonplaceholder.typicode.com/comments?postId=1&id=1
Actual URL: http://jsonplaceholder.typicode.com/comments

Script:

def requestObject = builder
	.withRestRequestMethod("GET")
	.withRestUrl("http://jsonplaceholder.typicode.com/comments")
	.withRestParameters([
		new TestObjectProperty("postId", ConditionType.EQUALS, "1"),
		new TestObjectProperty("id", ConditionType.EQUALS, "1")
	])
	.withHttpHeaders([
		new TestObjectProperty("Content-Type", ConditionType.EQUALS, "application/json")
	])
	.build()

Script example taken is taken from below link, and Katalon version tried is 7.1.2