hdr tonemapping: how to disable auto brightening but keep darkening of the image?

[geextahslex]

Hi, I would like to disable the "feature" that makes the image brighter depending on the nits hdr-compute-peak (there are some issues) but I would like to keep the darkening of the image. I tried these values but there was no effect hdr-scene-threshold-low=1 hdr-scene-threshold-high=1
Also sometimes night scenes look too bright/unnatural and look like "day"
I'm using tone-mapping=st2094-10 vo=gpu-next

Thanks for any help :)