Bugfix: Correctly handle mode_switch state bit, more debugging output for states

Bugfix: Correctly handle mode_switch state bit, more debugging output for states

We abuse (1 << 8) as mode_switch bit, which is in the range of the
filtered state bits (see previous commit). Therefore, we need to
filter first and then check for mode_switch.

Furthermore, we used 0x2 before, which was just wrong. So, use our
bitmask, not the normal one (0x2).