%04n output_template naming

[Meowsod]

mpv version and platform

mpv 0.33.0
Ubuntu 20.04.5

Description

What I'd like to do is name the clips using the scheme I usually go with - output_template = "clip_%tY-%tm-%td_%04n"

expected result:
clip_2023-02-02_0001.mp4
clip_2023-02-02_0002.mp4
clip_2023-02-02_0003.mp4
...
result:
clip_2023-02-02_%04n.mp4

[mianmur]

really want this too, would make clips way easier to maintain

[Bonboon229]

Ditto