I wanted to move a sub-site in our old site collection to another site collection , what I have did is the following :
1- Go to new site collection create team site xyz with unique permission (xyz owners, xyz visitors and xyz members)
2- Export sub-site from old site collection using this command
export-spweb "http://host/sites/OldsiteCollection/xyz" -path "D:\Temp\migration\backupfile.cmp" -IncludeUserSecurity
3- Import subsite (from step 2) to my new site collection using this command
Import-SPWeb "http://host/sites/NewsiteCollection/xyz" -path "D:\Temp\migration\backupfile.cmp" –UpdateVersions Overwrite -IncludeUserSecurity
The site is moved successfully but with one issue in the permissions. When I go to site actions => Site Permissions, all permissions entry has limited access added to it , although permissions on the old site doesn't have the limited access.
I know that limited access permission is added by SharePoint for users who access only to a resources in a site (user have read only on task list for example)
any idea what is went wrong and how I can migrate site with the same exact security permissions ?