Top Active Members script does not link global users properly in created workspace

In this script:

code
velocity

1. 1. Max number of contributors to display.
      #set ($MAX_CONTRIBUTORS = 5)
   2. We fetch a bit more contributors than needed to include some users that might be ignored.
      #set ($FETCHED_CONTRIBUTORS = $MAX_CONTRIBUTORS + 5)
   3. Whether to ignore the main global admin or not.
      #set ($IGNORE_GLOBAL_ADMIN = true)
      ##
      #set ($contributors = $xcontext.xWiki.store.search("select ase.user from ActivityEventImpl ase GROUP BY ase.user ORDER BY count DESC", $FETCHED_CONTRIBUTORS, 0, $xcontext.context))
      #set ($validContributors = 0)
      #foreach ($contributor in $contributors)
   4. It seems that we can have empty users in the table.
   5. We also ignore superadmin since he 'should not exist'.
   6. We also ignore the workspace template admin since it's a side-effect of bug http://jira.xwiki.org/jira/browse/XWIKI-6261
   7. We also ignore a 'ghost' local admin for workspaces since it should no longer exist.
      #if ("$!contributor" != '' && !$contributor.endsWith('superadmin') && "$!contributor" != 'workspacetemplate:XWiki.Admin' &&
      ( !$IGNORE_GLOBAL_ADMIN || ($IGNORE_GLOBAL_ADMIN && "$!contributor" != 'xwiki:XWiki.Admin' ) ) &&
      ( $xcontext.mainWiki || (!$xcontext.mainWiki && "$!contributor" != 'XWiki.Admin') )
      )
      #set ($validContributors = $validContributors + 1)
      #set ($userDocumentReference = $services.model.resolveDocument($contributor))
      #set ($userDocument = $xwiki.getDocument($userDocumentReference))
      #set ($userObject = $userDocument.getObject('XWiki.XWikiUser'))
      #set ($displayName = "$! {userDocument.getValue('first_name')}

      $!

      {userDocument.getValue('last_name')}

      ")
      #set ($displayName = $displayName.trim())
      #if ("$!displayName" == '')
      #set ($displayName = $userDocumentReference.name)
      #end
      1. [[$displayName>>$!

      {contributor}

      ]]
      #end
      #if ($validContributors == $MAX_CONTRIBUTORS)
      #break
      #end
      #end

To see the full list of workspace members, you can use the [[User Directory>>Main.UserDirectory]] page.
/velocity
code

The $contributor is a local reference. When displayed in a child wiki the link is bad