Broken version history after migrating to Sharepoint 2013

Question

I had a WSS3.0 instaliation with forms based authentication, and I wish to migrate to SP2013. I have SP2010 and SP2013 servers, I've successfully detached content database from WSS 3.0, attached to SP2010, detached and atached to SP2013, performed following:

Convert-SPWebApplication -Identity http://Your-Server-Name -To Claims -RetainPermissions

It renamed all the users in UserInfo table to "i:0#.f|provider|", but kept the old names (provider:) in all metadata:
- documents author, modifiedby (this is not a big issue, I wrote a script to fix it)
- documents version history, same situation, problem is that versions are read only from API/powershell side.

Has anyone else faced this situation (I guess there should be many people with same problem, just wondering why I can find any solutions on internet).

Answer 1

You can try following script to rename provider. I have used it while migrating one domain to separate domain.

Add-PSSnapin Microsoft.SharePoint.Powershell

$web = Get-SPWeb -identity "http://Web Application URL"

$user = $null 
$newuserID = $null 
$OlduserID = $null 

$OlduserID = 'i:0#.f|provider_old\{LoginName}'
$newuserID = 'i:0#.f|provider_new\{LoginName}' 
$user = Get-SPUser -Web $web -Identity $OlduserID #-ErrorAction SilentlyContinue 

If($user) { 
    $newuserID = $web.EnsureUser($newuserID) 
    Move-SPUser -Identity $user -NewAlias $NewuserID -Confirm:$false -IgnoreSID 
    Write-Host " Migrated"
} Else{
Write-Host "Unable to Migrate"
}