Unexpected behaviour: pull to refresh inbox stops spinning before the refresh is complete

Visually it looks as if the refresh is done, and there’s nothing new. But then a few seconds later the inbox actually refreshes.

I expect the pinwheel to keep spinning until the refresh operation is complete.

As it stands, I pull to refresh, and just wait like 3 seconds to see if new messages pop up.

Obv not huge, just wanted to document the unexpected behavior.