I see they have a transaction system to manage conflicting edits. How does that handle nested data? If a parent is renamed or moved in the order is an offline

I see they have a transaction system to manage conflicting edits. How does that handle nested data? If a parent is renamed or moved in the order is an offline edit to the child element rejected? I want to add synchronisation to my lists app (http://human-friendly.com/software http://human-friendly.com/software) but I'm not sure that there is a solution that always gets it right without nasty user interventions or throwing away data in some scenarios. My fear is continually pushing it down the priority list for development.