AD connector Import Changes doesn't pick up changes to multivalued attribute (Import All does) for AD object type 'group' attribute 'member'

With the following AD connector configured:

When I use AD Users & Computers to change the DN of one of the objects in the 'member' attribute of a group and then run Import Changes the corresponding connector entity's member field is not updated and the old DN value is retained.

When I run Import All, the member attribute updates correctly with the new DN value.