Possible wordpress bug

I am using the official 3.6 beta 3.
A few weeks ago I set up your plugin to add icons to the menu. GREAT.
On the off chance I exported that site and when importing the data into a new site the config in the Menu Item–>Navigational Label didn’t survive the import. All the other settings did survive.

http://wordpress.org/extend/plugins/genericond/