NavigationExpansions remove projection after GroupBy

[smitpatel]

os => os.GroupBy(o => o.CustomerID).Select(g => g.Sum(gg => gg.OrderID)).All(ee => true);

Tree before nav rewrite

bool All(
|__ source: IQueryable<int> Select(
|   |__ source: IQueryable<IGrouping<string, Order>> GroupBy(
|   |   |__ source: DbSet<Order>, 
|   |   |__ keySelector: (Order o) => o.CustomerID), 
|   |__ selector: (IGrouping<string, Order> g) => int Sum(
|       |__ source: g, 
|       |__ selector: (Order gg) => gg.OrderID)), 
|__ predicate: (int ee) => True)

Tree after nav rewrite

bool All(
|__ source: IQueryable<IGrouping<string, Order>> GroupBy(
|   |__ source: DbSet<Order>, 
|   |__ keySelector: (Order o) => o.CustomerID), 
|__ predicate: (IGrouping<string, Order> Param_0) => True)

[smitpatel]

Same behavior for Any