There seems to be a problem with the "playlists tracks" CLI command in SBC 7.4.0 and 7.4.1. The answer includes Jive tags. 

In 7.4.0:
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CLI and JSON add 2 entries to the "playlists tracks" list:

CLI:
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playlists tracks 0 10 playlist_id%3A17436 playlist%20index%3A0 id%3A2 title%3AFires%20(Radio%20Edit) genre%3ABrit-Pop artist%3AThe%20Arkwrights%20 album%3AMercedes%20Benz%20Mixed%20Tape%2016 duration%3A314.597 text%3AWiedergabeliste%20l%C3%B6schen%20xyz actions%3AHASH(0x138f5a90) window%3AHASH(0x13943be0) style%3Aitem text%3AIn%20Favoriten%20speichern actions%3AHASH(0x1342f618) window%3AHASH(0x13942bf8) style%3Aitem count%3A3

JSON:
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{"params":"",["playlists","tracks","0","10","playlist_id:17436"]],"method":"slim.request","id":1,"result":{"count":3,"playlisttracks_loop":[{"playlist index":"0","id":"2","title":"Fires (Radio Edit)","genre":"Brit-Pop","artist":"The Arkwrights ","album":"Mercedes Benz Mixed Tape 16","duration":"314.597"},{"actions":{"go":{"params":{"menu_all":1,"playlist_id":"17436","menu":"track","url":"file:///crypto/playlists/xyz.m3u","title":"xyz"},"cmd":["jiveplaylists","delete"],"player":0}},"window":{"titleStyle":"playlist"},"text":"Wiedergabeliste löschen xyz","style":"item"},{"actions":{"go":{"params":{"url":"file:///crypto/playlists/xyz.m3u","title":"xyz"},"cmd":["jivefavorites","add"],"player":0}},"window":{"titleStyle":"favorites"},"text":"In Favoriten speichern","style":"item"}]}}


In 7.4.1:
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The CLI command does not include the jive tags anymore, but they still exist in JSON requests.