When in Application.CollectionsEditMode=Edit mode, nested aggregated child object lists behave as we needed, not saving anything to DB until parent object's save action executes.
But when using Application.CollectionsEditMode=View and setting required DetailView.CollectionsEditMode=Edit from platform's model this behaviour changes and when saving a child, master object is saved too, without waiting any save action execution, and returns to parent object's detail view and switches back to view mode again.
How can we use Application.CollectionsEditMode=View with the same behaviour as Application.CollectionsEditMode=Edit does in required detail views?
Googled around many times and found this, devexpress confirmed issue