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Is exists way to detect changes in one object graph comparing it this another object graph.
For example:
usersSourceGraph = ObjectContext.Users.Where("bla bla bla");
userGraph = GetUsersGraph() // come from another tier and detached from ObjectContext.
I need way of setting userGraph states in (Modified,New) comparing with usersSourceGraph.
You must do it manually. There is no support in EF for merging two object graphs.