The process that DA uses to get the options to display to the user before restoring a backup file is to run "tar tzf" on it. This will create a list of files which DA can then read in and figure out what's there to be restored. When a tar file (in one example) has upwards of 20,000 files, the standard method of reading in a file has to be optimized a certain way. This fix does that. The fix also will find any new domains to be added during the "restore options" page, so that all checkboxes can be selected, even for data that belongs to a domain that has not yet been added to DA (but exists in the backup).