Provide migration from autocomplete_widgets

@Grevil we have a case in CU where this can be perfectly tested in a real world migration. Please provide the results here. If it works, this can be set RTBC and we can merge this.

Just tested the patch and the migration works perfect!

This also fixes the old mapping, breaking the migrated values! Awesome stuff!

Created a new beta1 release with this fix + 4 further issue fixes!

Thanks @Grevil! Cool :)
I'll merge this and add a new release.

LOL sorry that was an old status

Automatically closed - issue fixed for 2 weeks with no activity.