Make governance committee membership replaceable

[Chris-Hibbert]

What is the Problem Being Solved?

We want the ability to update the membership of governance committees.

Description of the Design

Add a method to the committee's creator facet allowing the holder to replace the committee's members. This could be called by something in the bootstrap context after a cosmos-level vote to elect a new slate of addresses.

Security Considerations

governance, legibility.

Test Plan

check wrong number of nominations. Verify legibility.

[dckc]

@Chris-Hibbert this part of the design isn't quite clear to me:

Add a method to the committee's creator facet allowing the holder to replace the committee's members.

What does it mean to replace the committee's members? Is it a matter of regenerating the voter invitations?

(If it's clear to you, I can stand by until you find time to code it up for an explanation.)

[Chris-Hibbert]

The representation inside committee.js would have to change. It doesn't currently track the outstanding voterHandles or have a way to invalidate theme. It would have to remember the voterHandles, check them when voting, and replace them with a new set on changes. (A more OCap-ish approach might be to have an intermediate object that could cast the votes, and be invalidated when replaced.)

The method should probably allow the caller to specify a number of invitations, and return that number of new invitations.

[dckc]

A more OCap-ish approach might be to have an intermediate object that could cast the votes, and be invalidated when replaced.

Yeah... we seem to moving from using a replaceable electorate to using a long-standing electorate with revocable membership.

This design makes sense.

[dckc]

I just ran across some related work:

In accordance with Prop 25 the SubDAO Multisig contract will be instantiated by this governance vote with the Juno community as admin. This means the community can execute messages on behalf of the DAO via a governance proposal, recall funds, upgrade the contract, or add / remove members. -- https://commonwealth.im/juno/discussion/5264-launch-hack-juno-subdao

[dckc]

having the committee be able to update its own membership is important.