Mark video as unwatched

Description

Right now, after watching a video, there is an orange check mark in the top left corner of the video thumbnail in the video directory search menu. When a video is marked as "watched" like this, there is no orange progress bar below the video name.

Expected behavior

It would be nice to be able to reset the status of a video - to remove the orange check and change it from "watched" to "unwatched".

Screenshot / video

App mode

This applies to smartphone, but I'm not sure about the other modes.

Smartphone

Auto