more powerful synchronizing of edited items opened directly from archive

[Former user]

HiFile allows opening and editing items directly from archive. Once the file is edited and saved, HiFile offers automatic synchronization back to archive. However once the synchronization is canceled by the user, the changes get lost.

HiFile should remember which temporary files were opened from the archive and allow their synchronization later, e.g. before closing HiFile. Archive file should also know and inform the usre that it has some pending unsynchronized changes.