HABApp 23.09.x - ".... is a UoM item but "unit" is not found in item metadata"

Starting with the release 23.09 I am seeing warnings in the log file like this:

[2023-10-05 15:01:32,430] [     HABApp.openhab.items]  WARNING | Item NetatmoInnenmodulHeatIndex is a UoM item but "unit" is not found in item metadata

My item definition is like this:

Number:Temperature     NetatmoInnenmodulHeatIndex                  "Gef. temperatur (hitzeindex)"   (gPersist)  {channel="netatmo:weather-station:85caac2b72:70ee5064fc74:HeatIndex"}

There are a lot of other entries in the log file at the start of HabApp.

These entries I definitely did not see in version 1.1.2

What is the meaning of these warnings?

It’s been there longer but you probably noticed it only now.
For a fix see this short description, for the reason see the long UoM change thread for OH4.

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