Minecraft Invisibility Bug With Shulker

Put the summary of the bug you're having here

What I expected to happen was...:
Make A Invisibility Shulker

What actually happened was...:
Well When You Shot A Invisibility Arow To A Shulker It Chages White
Steps to Reproduce:
1. Get A Bow And Shot A Invisabilty Arrow At A Shulker When Its Moving Up/About To Shot At You
2. DONE! ITS WHITE
I Think It dose it On 15w31a Too