message: Qrack: use_z_x_fusion off by default
diff: @@ -43,7 +43,7 @@ private:
  bool m_use_stabilizer = true;
  bool m_use_binary_decision_tree = false;
  bool m_use_paging = true;
  - bool m_use_z_x_fusion = true;
  + bool m_use_z_x_fusion = false;
  bool m_use_cpu_gpu_hybrid = true;
  int m_device_id = -1;
  bool m_do_normalize = false;
  