Erasing MV attribute XXXXX of object LDAP://domain.com/CN=XXX,OU=XXXX,DC=domain,DC=com . No information about previous state of the attribute
A possible cause for this warning could be when the source or target domains have some empty groups.
The warning means:
During synchronization process DSA received from AD an attribute with an empty value.
DSA has to delete this value on target.
DSA searches through the cache and does not find a value for this attribute in the cache so DSA "decides" to leave the attribute there without deleting.
This warning is of informational character and can be safely ignored.