bug: Issuer doesn't see any new connections in GET /connections or GET /connections/:id

Steps:

1. Issuer makes a new connection invitation
2. Holder accepts it
3. Issuer calls GET /connections

Response:

{
    "id": "f3d32118-2591-4333-8f22-3102f321720c",
    "specversion": "V1",
    "datacontenttype": "application/json",
    "subject": "connections.list",
    "source": "/connections",
    "type": "connections.list",
    "data": []
}

4. Issuer calles GET /connections/:connectionId from Holder step 2.

Response:

{
    "id": "81366aa1-f43c-4a12-89b8-bfcfe686796c",
    "specversion": "V1",
    "datacontenttype": "application/json",
    "subject": "connections.get",
    "source": "/connections/:id",
    "type": "connections.get",
    "data": null
}