[O] Scaling down face maintains line height

[Andreas]

Hi,

when I scale down (C-x C--) an org buffer's faces, they maintain the
original line height, filling up with vertical space, which is not what
I want.  See as an example:

https://share.eva.mpg.de/public.php?service=files&t=0bd6cff7cc9bb41d691d0d0f0260f7ef

The importance of it becomes visible when using minimap-mode, which
becomes useless under these circumstances.

Any idea?

Thanks,
Andreas


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