ghostnet governance stuck on period 58

We changed the cycles_per_voting_period to 1: !5751 (merged)

This caused the "number of remaining blocks" to jump to the negative:

ubuntu@ip-10-19-160-86:~$ curl http://localhost:8732/chains/main/blocks/1191936/metadata | jq .voting_period_info
{
  "voting_period": {
    "index": 58,
    "kind": "proposal",
    "start_position": 1187840
  },
  "position": 4095,
  "remaining": 16384
}
ubuntu@ip-10-19-160-86:~$ curl http://localhost:8732/chains/main/blocks/1191937/metadata | jq .voting_period_info
{
  "voting_period": {
    "index": 58,
    "kind": "proposal",
    "start_position": 1187840
  },
  "position": 4096,
  "remaining": -1
}

and now it's decreasing forever, and we are stuck on period 58.

I see two ways where maybe this can be fixed:

• sending a dictator update operation and then a cancellation (empty proposal). would that reset the period counter? (I don't think so)
• edit the governance code so if the "number of blocks remaining" is negative, it's treated as a zero and the new period starts at the beginning of the next cycle? this could be added to L and we would do a ghostnet UAU to L