Selfie smart shot does not work properly most of the time

[Pedals2Paddles]

Ever since the last release from 3DR in mid 2016, the Selfie smart shot has not worked properly most of the time. As the copter flies up and away, the gimbal pitch does not stay locked on the target. And as it climbs higher and further away, the copter yaw rotates 90 degrees.

At this time, it is unknown why this happens as there are no obvious errors in the code. It would be great to fix this in Open Solo since 3DR did not fix it.

https://github.com/OpenSolo/shotmanager/blob/master/selfie.py