The `buckets()` command would use a bucket lookup that wrapped the
`FindBuckets` API. It did not use the pagination aspect of this API
correctly. When the underlying implementation was changed to a version
that correctly implemented pagination, this broke the query `buckets()`
command. Since it was query that used the API incorrectly rather than a
regression in the `FindBuckets` implementation, this fixes the usage to
correctly use pagination.
0cdbd496f4