Restore of Recordings module doesn't overwrite files

Assume I have corrupted or modified files and I need to restore the old ones, running fwconsole backup --restore nomefile.tar.gz – modules recordings , doesn’t overwrite existing files.

Restore says: “Same file exists”

If I delete sound file(s) prior to restore then they are restored

File Restored /var/lib/asterisk/sounds/etcetc

Is this the correct behavior ?