Recovered accounts can miss the encryption keys for the community

[jrainville]

Problem

I recovered my account using the seed phrase. While it recovered correctly the Status community and the tokens, I found that all the permissioned channels had no member list.
It was discovered that I was missing the encryption keys for those, because I had the latest community description and I could confirm, once I skipped the cache, that I had logs saying I couldn't decrypt.

The reason why it happened is most likely because the community was updated with new encryption keys and since the back up of keys only happens every 8 hours, my account didn't backup those new keys.

So once I reimported the account, it got the previous batch of back up, which had outdated keys.

Implementation

The way to fix is to be determined/analyzed.

One option is to have the member node ask the control node or even a privileged member.

Acceptance Criteria

When a user reimports their account with a permissioned community, the community keys for the channels are re-acquired in a timely manner (less than 5 minutes?)