❔ EntityFramework does not track changes for the select projection

var product = await _dbContext.Products
                .Include(x => x.Additionals)
                .Where(p => p.Id == Id)
                .Select(x => new Product { Id = x.Id, Name = x.Name, Additionals = x.Additionals })
                .SingleOrDefaultAsync();

product.Name = "ChangedName";
await _dbContext.SaveChangesAsync();   //no database changes

var product = await _dbContext.Products
                .Include(x => x.Additionals).SingleOrDefaultAsync(p => p.Id == Id);

product.Name = "ChangedName";
await _dbContext.SaveChangesAsync();   //correct changes