Comment 6 for bug 797000

Sorry if this isn't clear, I thought the bug title was - to rephrase
When a mimeapps.list line for inode/directory= is created it's using the entry in /etc/gnome/defaults.list for the "Default Association"
Because that .desktop doesn't exist in some limited instances it will then use the "Added Associations" line instead, which generally will be an app, not nautilus

There is a 2nd issue is concerning viewing the trash folder by clicking on the icon in the unity launcher, maybe that should be a separate bug?
In the case of the trash icon xdg-open is used, and it, (xdg-open), will only accept nautilus-folder-handler.desktop for a valid 'nautilus' entry, when it's not found it will also then use the "Added Association" entry instead (first listed in that line which is usually an app, not nautilus