identifier CODED_TEXT mapping and terminolgoy_id value not working

[SevKohler]

https://github.com/SevKohler/openFHIR/blob/498ec25506fc84ada97ad254feb9dd5de96d2e2e/src/test/resources/kds_new/projects/org.highmed/KDS/fall/KDS_episode_institution_local.yml#L37

See here, no matter how i write this mapping even if done directly the terminology_id value is not mapped.
Also if i declare TYPE: STRING.

[SevKohler]

This is due to flat paths, terminology_id is enough.

Also the $composition key does not work perse it requires $composition/something at least for iteration