Light from gl_colorlights 1 is missing on floors and walls when they have low blue color value with r_drawflat

[tomqw]

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ezQuake version:
3.6.4

OS/device including version:
RTX 3070, vid_renderer 1 but it also has same behaviour on 0

Describe the bug
Light from gl_colorlights 1 is missing on floors and walls when they have low blue color value with r_drawflat

To Reproduce
Steps to reproduce the behavior:
gl_colorloght 1
r_drawflat 1
set low blue value in floors and walls colors
For example:
r_floorcolor "130 130 0"
r_wallcolor "130 130 0"

Expected behavior
Show light

Screenshots
No light:
r_floorcolor "130 130 0"
r_wallcolor "130 130 0"

Light:
r_floorcolor "130 130 130"
r_wallcolor "130 130 130"

Additional context
Add any other context about the problem here.