This is an experimental feature, ongoing discussion can be found here: https://github.com/Koenkk/zigbee2mqtt/issues/1064
When report is enabled, devices will report their state changes to zigbee2mqtt even when the change is not directly done by zigbee2mqtt. This is especially handy when the state of a bulb is changed by e.g. a remote or via groups.
To enable report, add the following to your
advanced: report: true
Zigbee2mqtt will discover devices which are eligible for reporting. The zigbee2mqtt logs shows for which devices report is configured.