Screen lock toggle locks device and prevents fingerprint unlock

[Scl80]

After using the screen lock toggle, the device can only be unlocked via pin/pattern. Using the fingerprint unlock prompts for pin. If power button is used to lock device, fingerprint unlock works. This is apparently caused by improper use of DevicePolicyManager lockNow() functionality.

See issue here: https://code.google.com/p/android/issues/detail?id=191955