Minecraft bedrock ape X-ray glitch

Hello, I discovered this glitch while working on a mob grinder’s elevator shaft and I managed to recreate it with a water shaft and a block above my head. When my head collided with the block the textures dissapear as long as there isn’t a solid block as far vertically as the blocks go. This bug could be exploited to search for caves, dungeons, etc, I think you can picture the problem from that...