Disconnet the border-leaf devices, which were connected to spine devices in the 3-stage Clos fabric, from the spine devices, and then reconnect to the super-spine devices.
To keep the border-leaf devices connected to the spine devices (as done in the 3-stage Clos fabric) even in the 5-stage Clos fabric, do not disconnect the border-leaf devices from the spine devices, and then reconnect the border-leaf devices to the super-spine devices.