Rt2-to-rt3 (1.13) import error

During an import of a dump I got the error:

[Tue Jul 1 11:52:57 2003] [crit]: Failed to create user : Must specify
’Name’ attribute (/opt/rt3/lib/RT/User_Overlay.pm:595)
[Tue Jul 1 11:53:02 2003] [error]: Could not load create a user with
the email address ‘’ to add as a watcher for ticket 7064

What is actually going to happen to the ticket contained in '.t-7064’
and other tickets
related to it, if any?