No interpolation in btKinematicCharacterController v2.77

[kleinsch]

Just upgraded to 2.77 and some of my unit tests that used the character controller started failing. Specifically, I was testing that if my character ran into a static object, I'd get collisions. Narrowed it down to btKinematicCharacterController.cpp line 354. Looks like it was commented out in 2.77, so the character controller will stop and not interpolate if the target would have collided. This results in my objects hovering but not touching the wall, meaning I get no collision notification. I was able to fix this by commenting that line back in.

Was this intentional, and if so what was the motivation?