Newsfeed can send empty Evidence Record on error
When there's an exception parsing an RSS feed, nil is returned and an Evidence Record is sent to the Percolator with nothing but a JWT.
This manifests as an error message:
[event-data-percolator.process:288] - No ID in Record! Input was:
{
"jwt": "XXXXX.eyJzdWIiOiJuZXdzZmVlZCJ9.XXXXX"
}
util/send-evidence-record
should guard against this, only proceeding if the input isn't' empty. Doing this here gives broadest protection for unexpected behaviour in other Agents.