Clear linear velocity after each update.

Sources/Plasma/PubUtilLib/plAvatar/plPhysicalControllerCore.cpp

@@ -502,6 +502,9 @@ void plWalkingStrategy::Update(float delSecs)
         }
     }
 
+    hsVector3 zeroVelocity(0.f, 0.f, 0.f);
+    fController->SetLinearVelocity(zeroVelocity);
+
     if (!fHitGroundInThisAge && IsOnGround())
         fHitGroundInThisAge = true;