ZwaveJS develo MT02646 value reset date/time not working

As per the topic, I have zwaveJS and a develo MT02646 smart plug.

Its messing up my energy monitoring because the kWh consumed meter has an incorrect reset date. In fact it shows

state_class: measurement
last_reset: ‘1970-01-01T00:00:00+00:00’
unit_of_measurement: kWh
friendly_name: kettle kWh
device_class: energy

so 1970 is wrong.