Foreground app resumes before the device is completely unlocked

current build number: 169
device name: krillin
channel: ubuntu-touch/ubuntu-rtm/14.09-proposed
last update: 2014-11-24 21:39:51
version version: 169
version ubuntu: 20141124
version device: 20141119-db417fa
version custom: 20141119-442-21-160

To reproduce:
1 - Open PathWind (or any other app playing sound)
2 - Lock the screen and wait 5 seconds
3 - Press power to resume the device
4 - With a passcode/passphrase set, try unlocking the screen. You'll see the game will resume after swiping the greeter, and not after fully unlocking the device with the passcode/passphrase.