Statistics Are Calculated Incorrectly

What I expected to happen was...:
Stats would differentiate between; Wood Types and other Types
I.e. Flowers
I restarted MC in 1.8.9 incase it was a 1.9 pre 1 & 2 issue but is the same

What actually happened was...:
All wood stats like #Number Mined, Picked up etc.
Combine under Oak logs and Planks

E.g.
I picked up 10 Oak Logs, 15 Birch Logs
Stats record 25 oak logs picked up and 0 Birch
The same happens with flowers, Leaves and Planks, Slabs etc.

Steps to Reproduce:
1. Load New World
2. Break some different logs, flowers and leaves
3. Look at statistics and cross reference with inventory the issue will be clear. Again this is across 1.8.9 & 1.9 pre-releases