Fixed #483 Incorporated review comments: Retrieve the existing BallotItem with a minimum of three values contest_office_we_vote_id or measure_we_vote_id, polling_location_we_vote_id and google_civic_election_id
Fixed #483 Incorporated review comments: Retrieve the existing BallotItem with a minimum of three values contest_office_we_vote_id or measure_we_vote_id, polling_location_we_vote_id and google_civic_election_id

wevote/WeVoteServer,jainanisha90/WeVoteServer,wevote/WeVoteServer,jainanisha90/WeVoteServer,wevote/WeVoteServer,jainanisha90/WeVoteServer,wevote/WeVoteServer