What the hell does "Cleaning" mean?

  1. We've all seen this. The folder on the top left has an app updating in it. You can tell.
  2. But this!
  3. Li.St is "Cleaning."
  4. What does the hell that mean?! I've needed seen it before. Does anyone know?
  5. It didn't clean it so well that it's got 🔁 back, in case you were wondering. Ha!