message: fix bad update to not expose pgsearch delete event details
diff: @@ -236,18 +236,18 @@ class Batch {
  }
  async deleteDocument(context) {
  - let { branch, type, id, doc } = context;
  + let { branch, type, id } = context;
  let { rows } = await this.client.query('select branch, type, id, source, generation, upstream_doc as "upstreamDoc" from documents where branch=$1 and type=$2 and id=$3', [branch, type, id]);
  - let [ eventContext={} ] = rows;
  + let [ { upstreamDoc } ] = rows;
  this._touched[`${branch}/${type}/${id}`] = this._touchCounter++;
  let sql = 'delete from documents where branch=$1 and type=$2 and id=$3';
  await this.client.query(sql, [branch, type, id]);
  - await this.client.emitEvent('delete', eventContext);
  + await this.client.emitEvent('delete', { id, type, upstreamDoc });
  log.debug("delete %s %s", type, id);
  - await this._handleGrantOrGroupsTouched({ type, id, doc });
  + await this._handleGrantOrGroupsTouched(context);
  }
  async done() {
  