I just re-tested to make sure I was remembering correctly. Here’s what I get for four successive button presses after reprogramming:
zigbee2mqtt:debug 2019-12-18 22:15:14: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandMoveToLevelWithOnOff', cluster 'genLevelCtrl', data '{"level":254,"transtime":0}' from endpoint 1 with groupID 16387
zigbee2mqtt:debug 2019-12-18 22:15:14: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandMoveToColorTemp', cluster 'lightingColorCtrl', data '{"colortemp":370,"transtime":3}' from endpoint 1 with groupID 16387
zigbee2mqtt:debug 2019-12-18 22:15:35: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandMoveToLevelWithOnOff', cluster 'genLevelCtrl', data '{"level":254,"transtime":0}' from endpoint 1 with groupID 16387
zigbee2mqtt:debug 2019-12-18 22:15:35: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandMoveToColorTemp', cluster 'lightingColorCtrl', data '{"colortemp":222,"transtime":3}' from endpoint 1 with groupID 16387
<WHY!?!>
zigbee2mqtt:debug 2019-12-18 22:15:46: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandOff', cluster 'genOnOff', data '{}' from endpoint 1 with groupID 16387
</WHY!?!>
zigbee2mqtt:debug 2019-12-18 22:16:08: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandMoveToLevelWithOnOff', cluster 'genLevelCtrl', data '{"level":254,"transtime":0}' from endpoint 1 with groupID 16387
zigbee2mqtt:debug 2019-12-18 22:16:08: Received Zigbee message from '0xccccccfffea9cdd3', type 'commandMoveToColorTemp', cluster 'lightingColorCtrl', data '{"colortemp":370,"transtime":3}' from endpoint 1 with groupID 16387
Why there’s a random single “off” message thrown in, who knows… But that’s what I see every time I reprogram the remote with the scene button.
Luckily resetting knocks some sense into it.