Am I reading this code properly? Does the backup script only backup data from the turba_objects table only? What about the other tables customers might have data in ( kronolith_events, nag_tasks, etc)

From around line 470 in /scripts/cpbackup

Code:
      if ($> == 0) {
         open(SQL,">","${tarroot}/${prefix}${user}/mysql/horde.sql");
         my $pid = open(MYSQLDUMP,"-|");

         if ($pid) {
            use bytes;
            while(<MYSQLDUMP>) { print SQL; }
            no bytes;
         } else {
            open(STDERR,">/dev/null");
            my $dnslist = join("|",@DNS);
            exec("mysqldump","-c","-Q","-q","-t","-w","owner_id REGEXP '@(${dnslist})\$'","horde","turba_objects");
            exit(1);
         }

         close(SQL);
         close(MYSQLDUMP);
      }
I only ask because after a /scripts/upcp --force, somehow the kronolith_* tables lost all data and in the process of recovering the data, there was none to recover.