Barrier Blocks affect lighting of adjacent blocks

Affects 1.16.40

I decided that I'd run a little experiment with the barriers and how they modify the shadows. It seems almost like the shadows are being rotated in a certain way that causes the odd look. Here's the images I had taken. I hope that these help.

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affects 1.17.30.22

Affects 1.17.40.20

Can confirm for 1.18.30

Affects 1.19.22

Affects 1.21.1, it's interesting how sometimes block lighting is unaffected by the barriers, whilst other times it is