Disable collision for placeable objects (Fixes #1634)

libs/openengine/bullet/physic.cpp

@@ -461,7 +461,9 @@ namespace Physic
         BulletShapeManager::getSingletonPtr()->load(outputstring,"General");
         BulletShapePtr shape = BulletShapeManager::getSingleton().getByName(outputstring,"General");
 
-        if (placeable && !raycasting && shape->mCollisionShape && shape->mAutogenerated)
+        // TODO: add option somewhere to enable collision for placeable meshes
+
+        if (placeable && !raycasting && shape->mCollisionShape)
             return NULL;
 
         if (!shape->mCollisionShape && !raycasting)