How exactly does the "clawback" in a PIA work?

Hi
If as part of a PIA I have unsecured debt wiped by the bank and e.g. subsequently sell my PPR in 10 years time, can the bank demand the extra equity realised in the sale? Even if there had been no debt written down on that particular property?

And do PIA's generally contain clauses addressing the clawback?

Thanks for any advice.