Incorrect parsing of Curl different requests

I have never yet been able to correctly insert a POST Curl request into yaak.

1. Try to insert any POST request from Facebook, it imports headers perfectly, but from data it imports only the first argument.

2. Try importing a POST request to https://www.youtube.com/youtubei/v1/player?prettyPrint=false (click on the preview of any video), you will encounter that not all JSON data will be imported.

I can't provide examples of Curl requests as they contain authorization cookies and personal data.