It looks little controversial. Even the attorneys at 'avvo.com' share mixed reactions. Some states it doesn't violets some say it does.
For your research, you can dig into this url below and I hope you get solution:
http://www.avvo.com/legal-answers/should-i-change-to-h4-or-work-using-tps-ead--can-i-2287633.html
It would be nice if any Sajhaties going through same situation share the experience on this.
Goodluck!