We call `entry_by_path` on the `bulk_staging` anchor entry at the
beginning of `update_visible_entries`, but in the codepath where
`sort_by_path` is toggled on or off, we clear entries without clearing
`bulk_staging` or counts, causing that `entry_by_path` to do an out of
bounds index. Fixed by clearing `bulk_staging` as well.

Release Notes:

- N/A