Sun glitches when underwater and the sky turns dark blue.

When going underwater and staring at the sun you realize the sun changes color and position. 

How to reproduce

Start by digging a hole, then obtain a water bucket.
Pour the water inside the hole, then go underwater and stare at the sun while doing so.
You will realize that the sun completely changes.

Observations: Sun completely changes position and color.
Expectations: None of this should happen and the sun should look completely normal.