btKinematicCharacterController treats objects with no contact response as solids

What steps will reproduce the problem?
1. Create an instance of btKinematicCharacterController
2. Create an object (static or ghost would be fine) and set collision flag to 
btCollisionObject::CF_NO_CONTACT_RESPONSE
3. Move the btKinematicCharacterController into the create static/ghost object 
in step 2

What is the expected output? What do you see instead?
The btKinematicCharacterController instance should pass through but ends up 
treating it as a solid object instead

What version of the product are you using? On what operating system?
bullet-2.78 Linux 64 bit, though verified to exist in windows 7 64 bit as well.

Please provide any additional information below.
I've tracked down the bug myself and found that it's in the 
btKinematicCharacterController class. I've attached a patch file I made and 
hope it helps.

Original issue reported on code.google.com by triggerh...@gmail.com on 19 Jul 2011 at 11:59

Attachments:

character_ghost_fix.patch

favreau / bullet

btKinematicCharacterController treats objects with no contact response as solids #525