I have a people control on a form that needs to be scoped to a specific group of people. The site has a SharePoint group already created and there is a Distribution List inside of the group. I entered the SharePoint group name into the field in control settings > advanced. It appears that the control will only find individual users added to the group and it cannot find the individuals who are members of the DL inside the group. Is this a known limitation of what the people control can access, or is there another way to go about this?