Redstone wire goes through corner of sea lantern visually

Hello, I am here to inform you about a glitch with redstone.

I was in my creative world, experimenting with a human TNT cannon. I was placing some lights and more wiring down, when I noticed that a redstone wire I had placed down was going through the corner of one of my lights. I am not 100% sure if this is a glitch, or an intended feature. Thank you,

-GT