Question on Diggs contract restructure

I remember reading something about the Diggs contract restructure that said if the Texans were to lose Diggs to free agency the Texans would be owed a compensatory 3rd rounder for the loss of a Diggs caliber player/contract.

Is that true? I can't seem to find the article and don't normally see it mentioned when discussing the trade. If it true the 1 year rental for Diggs for a 2nd while also getting a 3rd wouldn't be so bad.

If it's not true. We'll then sorry I'm an idiot