manually created or moved items are not sorted alphabetically

[lfir]

Expected behaviour

All items are sorted alphabetically.

Actual behaviour

After manually creating an item or moving one to a different menu they get added at the end of it and aren't sorted alphabetically.

Steps to reproduce the behaviour

Using mozo move an item to a different menu or manually create a new one.

MATE general version

1.20.1

Package version

mozo-1.20.0-1.fc27

Linux Distribution

Fedora 27.

Link to downstream report of your Distribution

https://bugs.launchpad.net/ubuntu/+source/mozo/+bug/1661984