Listing backups leads to exit of the script

[rvalitov]

Hi!
I run Alpine Linux. When choosing the "List backups" the script just exits. FYI I'm not sure if I ever made any backups.

[SamNet-dev]

Fixed. The issue was set -eo pipefail — when no backups exist, ls returns exit code 1, and errexit kills the script before the empty-check on the next line runs.

Run mtproxymax update to get the fix.