MQTT Binding repetitive updates problem

I have ESP32-based sensor which pushes temperature and humidity values using Mosquito service,

Not a big problem, but item update event triggered even if nothing was actually changed (same value arrived),
in other bindings I seen code which triggers update event only if actual value changed.

Probably, it worth to have a way to tell binding that item should not be updated if event with same value arrived.

No in log I have:
2016-12-29 03:15:39 - Sensors_Kitchen_Temperature state updated to 24
2016-12-29 03:15:42 - Sensors_Kitchen_Temperature state updated to 24
2016-12-29 03:15:45 - Sensors_Kitchen_Temperature state updated to 24

I can’t put this logic to sensor, because sensor will never know when data actually required (i.e. OH restart), so sensor should push data more or less often.