User name taken form the SVN server is in "domain\user name" format. Active directory plugin for Hudson use only the "user name" for identity the person so the result is that there are tow persons in Hudson (see attaches).
Proposed solution is to add a option to configuration that will combine the domain and the user name so the person will be one or the better allow add domain name when the user provide its name. The second option will have this advantages that it will also allow authenticate users in the related domains.