Membergroup picker uses logged in CMS user's account

[smarshallsay]

Which Contentment version are you using?

5.1.0

Which Umbraco version are you using? For example: 13.2.1 - don't just write v13

13.5.2

Bug summary

Membergroup picker does not return results if the user does not have access to view members and member groups.
We were using this to restrict page access, if the page was loaded by said user, the picker would throw an error when the page was loaded in the CMS and return no items. The problem being that the page could still be saved by that person but of course it would be saved with a blank list of member groups and remove restrictions for that page!

Datalist with member groups does not have this issue, a user with no membergroup access can still use the picker.

Steps to reproduce

Add membergroup picker to page and set member groups, load and save page with a user with no member / membergroup access

Expected result / actual result

Expected:
Member groups returned and selection can be changed.

Actual:
Member groups not returned, if page saved then a blank list is saved.

Do you have Umbraco ModelsBuilder enabled?

• Yes, it is enabled.

What browsers are you seeing the problem on?

Chrome