Stop re-querying blind.

const feed = await laser
  .watch()
  .index("orders_v1")
  .records()

// await the advance, never re-query blind
let changes = await feed.poll()
while (changes.length === 0) {
  await sleep(200)
  changes = await feed.poll()
}
for (const change of changes) {
  console.log(change.rows, "row(s) landed")
}