var toRefresh = new List<object>();
var singleStateList = context.Model.ObjectStateManager.GetObjectStateEntries(EntityState.Added).Where(entry => !entry.IsRelationship).Select(entry => entry.Entity).Where(entity => entity != null);
toRefresh.AddRange(singleStateList);
singleStateList = context.Model.ObjectStateManager.GetObjectStateEntries(EntityState.Modified).Where(entry => !entry.IsRelationship).Select(entry => entry.Entity).Where(entity => entity != null);
toRefresh.AddRange(singleStateList);
singleStateList = context.Model.ObjectStateManager.GetObjectStateEntries(EntityState.Deleted).Where(entry => !entry.IsRelationship).Select(entry => entry.Entity).Where(entity => entity != null);
toRefresh.AddRange(singleStateList);
context.Model.Refresh(RefreshMode.StoreWins, toRefresh);

var toRefresh = new List<object>();
var singleStateList = context.Model.ObjectStateManager.GetObjectStateEntries(EntityState.Added).Where(entry => !entry.IsRelationship).Select(entry => entry.Entity).Where(entity => entity != null);
foreach (var element in singleStateList)
{
    context.Model.Detach(element);
}
context.Model.AcceptAllChanges();
singleStateList = context.Model.ObjectStateManager.GetObjectStateEntries(EntityState.Unchanged).Where(entry => !entry.IsRelationship).Select(entry => entry.Entity).Where(entity => entity != null);
toRefresh.AddRange(singleStateList);
context.Model.Refresh(RefreshMode.StoreWins, toRefresh);