Sheared Sheep drop wool when killed

What I was doing: I sheared a sheep. Then I killed it while it hadn't regrown it's wool.

What I expected to happen: The dead sheep drops mutton and a few xp-orbs.

What happened: The dead sheep dropped a few mutton pieces some xp-orbs and a woolblock.

I tried it multiple times and it happened everytime.
Phone: Huawei P9 Lite
This was done in 1.1.0.9, but this is an invalid version number in your bugreport