Confused with frigate record mode settings!

[signal kettle]

I'm really confused,

  enabled: true
  retain:
    days: 0
  alerts:
    retain:
      days: 14
      mode: motion
  detections:
    retain:
      days: 14
      mode: motion

detect:
  enabled: true
  fps: 5

objects:
  track:
    - person
    - dog
    - cat
  filters:
    person:
      threshold: 0.75```

How does the mode: motion work for Alerts and Detections?
Frigate has been recording just when detecting objects...