Deal with foreperson losing their keys

[rmerom]

If a regular participant loses their keys, the foreperson can retrieve the surplus funds at the end of the ROSCA and save the funds.
However, if the foreperson loses their keys, currently the funds will be "stuck" in the contract.

Suggested solution:
X time after the ROSCA ends (maybe 3 rounds?) allow WeTrust to access any surplus funds.

[morelazers]

I reckon it should be a constant, something like 3 months. User should still be able to withdraw after that time.

However it raises another issue: If a user comes to WeTrust 4 months after the end of a ROSCA, and claims to be the foreperson of said ROSCA, but has lost their keys, we can't verify that on-chain and (in my opinion) should not consider refunding the user.

[rmerom]

You're raising a valid point about verifying who a user was. This circles back to our conversation of whether we can have the user "prove" they own the contract by submitting a secret to the contract.

Yes, as for the time to wait, maybe @gliinbox being the PM, can pitch in.

[gliinbox]

For time to wait, I agree with Tom to use a constant - like 90 days. This is in the extreme case where there might be say, 1 day ROSCA periods.