Provisioner retrieve AD objectSid and objectGuid as string instead of binary

If you want to use an unchanging id for an AD group to detect renames, you could potentially use objectSid or objectGuid which are unique for each group in AD. However, these are binary values, and Grouper is unable to store them in the cache table. I don't see other good options, unless you use the group idIndex or uuid, but it needs the right kind of object to be able to store the value into a custom attribute.

update grouper_sync_group set ... group_from_id3 = 'I`�ɖ?I`�ɖ?H�x���]m�', ... was aborted: ERROR: invalid byte sequence for encoding "UTF8": 0x00