Adding stones automarks them with a triangle

[shinuito]

Describe the bug
Whenever you add stones in analysis mode, it typically adds a triangle marker when those stones weren't present in the main branch.

At least I think this is the main thing. If the stones were already part of the main branch and they're removed and readded as the same colour, they don't seem to get a triangle marker.

Expected behavior
No stone markings when adding Black and White stones. I think if someone wants to mark the stones they will.

Screenshots
Manually counting a game moving black and white stones around

Seen on a recent EGF stream.

Desktop (please complete the following information):
Definitely happens on Chrome and Safari on desktop