Kalle Niemitalo Sorry i missed your reply and was on vacation. But this is the simplest thing, which i believed someone would have already recreated.
Here is the details-
select following parameters in freestyle job:
**1. String parameter (also add description)
2. Add boolean parameter (also add description)
Please refer to attached screenshot parameters_details.png
HTML Output screenshot: build_with_parameters_html_output.png
PROBLEM: Please see the output of "build_with_parameters_html_output.png", how text was wrongly rendered, and notice the text box for string_parameter.
NOTE: this output you will see with your workaround.