What I expected to happen was...:
The sun shouldn't be this big

What actually happened was...:
The sun is too big

Steps to Reproduce:
I don't know  how this happened 

Well... something new happened, I alt+tabed and... it got replaced with an image. I swear I didn't do anything else

I don't have any mods, optifine, forge, or anything else, I haven't installed anything at all. Don't have any resource packs either

mm... help 

update: after client restart, it goes away, but still... it's a bug