I had an list on SharePoint server 2010 enterprise with classic authentication. on the list there was field with usernames
After I migrated (import/export statements below) this list to new server with claims based authentication every user that was on this list get a duplicate entry (on http_://newsite/_catalogs/users/detail.aspx)...
How can I get rid of this duplicates? on AD it's this same account!... full sync does not work :/
old server: export-spweb –identity http_://oldsite/test -ItemUrl Lists/oldlist –path C:\export\x.cmp –includeversion all
new server: import-spweb –identity http_://newsite/test –path C:\export\x.cmp -UpdateVersions Overwrite -IncludeUserSecurity
Best regards Roman