Cannot strafe sprint if a or d is held first

Steps to Reproduce:
1. Play latest Windows 10 Edition of Minecraft with mouse and keyboard with default controls
2. Try "strafe sprinting" or sprinting diagonally by holding a or d first, then w
(obviously hold the sprint key when doing this)

Observed Results:
- Cannot strafe sprint if the a or d key has been held before holding w

Expected Results:
- Player should strafe sprint the same way as if w is held before a or d