It's like the olden times where illiterate people were asked to sign a contract that waived their rights and possessions while they were being told something else entirely.
That's just modern day Russia whereby asylum seekers were sent to the Finnish border, not let in, then when turning back round were given documents to sign by Russia which they were told meant they would be allowed to stay, but actually meant they were being shipped off to Ukraine to fight.
It's like a potentially abusive spouse, asking their future spouse to waive all rights to seek legal recourse if they beat them in the future. This crap shouldn't be legal.