How to replace a supplier contact on a closed negotiation

How to replace a supplier contact on a closed negotiation?

Some of our negotiations are long and take several months since the publish to the award.

Quite often, we need to continue to exchange messages with our suppliers post negotiation closure.

On certain cases, the supplier contact initially invited on the negotiation leaves the organization and must be replaced.

We create a new contact on the supplier record, but once the negotiation is closed, we are not able to update the contact anymore.

Is anyone facing the same issue?

Version (include the version you are using, if applicable):

22C