% instead of
This will only work without
excludeConnectAddons flag. You can filter then connect add-on users by their keys that contains ‘addon_’, but i’m not sure if that’s all add-on users, mb there is without ‘addon_’ prefix, but i haven’t seen them yet. But with this approach no groups will be listed in response.
You can use
/rest/api/2/groupuserpicker?query=%00&excludeConnectAddons=true and you will get users with excluded add-ons but as before, no groups.