Include/exclude roles from purge is not optional

@dawid_cyron that's fixed in 🐛 Query condition 'ur.roles_target_id IN ()' cannot be empty Fixed

@immaculatexavier could you please provide your patch as MR to mark it RTBC?

@immaculatexavier any plans?

Let's postpone this for now.

For me at least, the expected result of not including nor excluding a user role would suggest deleting all users, which are targeted by the purge.

1. We should make sure, that in this case, users with the admin role are excluded
2. Check what the outcome of "$exist_query->condition('ur.roles_target_id',[], 'IN');" will be, as the fallback value of the user roles is currently an empty array. And I am in doubt that conditioning an empty array, will lead to selecting all user roles.