[MC-140626] Buggy glass lighting

When glass block is placed near any other block it creates a shadow as if it wasn't transparent.

I noticed the bug in 18w46a, but didn't bother to report it.

Linked issues

Thank you for your report!
However, this issue is a Duplicate of MC-139427.

If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.

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Oh, sorry. I tried searching, but I couldn't find anything.