Affects Version/s: Minecraft 1.11.2
Fix Version/s: None
I watched the old post https://bugs.mojang.com/browse/MC-1769 ，I see standing inside TNT/Glowstone/Block of Redstone was fixed now, but standing inside tree leaves still can let people see through blocks, if you turn your render quality to fast mode.
1, change render quality to fast.
2, place some tree leaves, at least 3x2x3, and teleport you inside it.