Possible bug or user error with creating a array comma separated

Wappler Version : Wappler 4 Beta 10
Operating System : Mac
Server Model: Node Js
Database Type:SQL
Hosting Type: Docker

The allowed_roles in the repeat is from previous versions the new copy below is beta 10, the old version creates something like 1,4,5,5,6,3,3 etc the new version doesn’t add the values and returns null. Is there a new way to do this?

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