The latest version of parsec-service recipe adds parsec into teeclnt group if Parsec is built with TS provider:

https://git.yoctoproject.org/meta-security/tree/meta-parsec/recipes-parsec/parsec-service/parsec-service_1.0.0.bb#n75

In this case teeclnt group is created by libts recipe (it will be merged into meat-arm later this week).

With your change it's not clear what recipe will create the group. Could you point me to this recipe.

Anton