Keba Bindung: State is converted to DateTime

I’m having problems with the ‘state’ channel of the keba binding.
The state is shown as datetime in the sitemap, conversion does not work etc

String KebaState "Operating State [%s]" {channel="keba:kecontact:7e03e795cf:state"}

In the sitemap it is shown as:

Operating State 1970-01-01T01:00:01+01:00

If i try to create a mapping (for exptected values 1,2,3, …), there is consequently an exception:

2022-11-08 10:34:25.504 [WARN ] [rest.core.item.EnrichedItemDTOMapper] - Failed transforming the state '1970-01-01T00:00:01.000+0000' on item 'KebaState' with pattern 'MAP(keba.state):%s': Target value not found in map for '1970-01-01T00:00:01.000+0000'

There is a bug in the documentation. The state has to be a number item:

Number KebaState "Operating State [%s]" {channel="keba:kecontact:7e03e795cf:state"}

The example .items file is wrong while the definition in the channels table is correct ?
Use the link at the bottom of the documentation page to report the problem.

Yes the example item file isn’t correct. I had created an issue here: [keba] State Item should be Number not String · Issue #13679 · openhab/openhab-addons · GitHub