[MC-145317] Lighting on magma blocks behaves weirdly

For whatever reason, the lighting system for magma blocks acts weirdly, in that it seems to give off darkness rather than light like its supposed to.

As far as I know, this only affects magma blocks; glowstone, torches, and other blocks still properly give off light.

Linked issues

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We're actually already tracking this issue at MC-138211, so we will resolve and link this ticket as a duplicate.

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That's a completely different issue. I can confirm that magma blocks appear to darken the area around them unnecessarily much.

May relate to MC-139621

wobst.michael 2019-04-03T20:06:00Z

I think it's fixed now in 19w14a. Can you re-check?

This issue does not seem to be fixed in the latest snapshot. It seems to behave the exact same way it does in 19w09a, 19w12b, and 19w13b.