For one who miss question tags - it is all about EntityFramework 7 (beta8)
Main question is in subject.
Btw, all I need is shortcut method that allows me to set entity properties using another entity of same type (just like in example code below):
dbContext.Entry(someAttachedEntity) .CurrentValues .SetValues(someSrcObject);
It seems like my problem is connected with return value type of DbContext.Entry<T> method: in EF6 it was DbEntityEntry<T>, but in EF7 it is EntityEntry<T> (more abstract object?).
So, is it some breaking change or I just miss some dependency?