The LH_HACK code...

Lets have a look at this snazzy code block in game/player.cc...

#define  LH_HACK   1
// Hack for short-term soln to Training crash - 
#if   LH_HACK
static U32  sBalance;

bool Player::displaceObject(const Point3F& displacement)
{
   F32 vellen = mVelocity.len();
   if (vellen < 0.001 || sBalance > 16) {
      mVelocity.set(0, 0, 0);
      return false;
   }

   F32 dt = displacement.len() / vellen;

   sBalance++;
   
   bool result = updatePos(dt);
   
   sBalance--;

   getTransform().getColumn(3, &delta.pos);
   delta.posVec.set(0, 0, 0);

   return result;
}

#else

bool Player::displaceObject(const Point3F& displacement)
{
   F32 vellen = mVelocity.len();
   if (vellen < 0.001) {
      mVelocity.set(0, 0, 0);
      return false;
   }

   F32 dt = displacement.len() / vellen;

   bool result = updatePos(dt);

   mObjToWorld.getColumn(3, &delta.pos);
   delta.posVec.set(0, 0, 0);

   return result;
}

#endif

From what i can tell, by default the code uses the "LH_HACK" method, which is identical to the normal method, except there is a "sBalance" counter.
However, the "sBalance" counter does not appear to do anything useful - it is incremented once before updatePos(), and decremented again afterwards.
Another thing is that even if "sBalance" reached 16, there is no way for it to decrement back down so the rest of the code is called at a later time.
Perhaps sBalance was meant to be altered by script - but i'm pretty sure its not so anymore.
Whats even more shocking is that it is not even initialized - so there is no guarantee its going to be 0!

Seems like this is a very long term short term hack :)