SaveChanges on entity not persisted in Cache

[LordMike]

I've tried out Cacheable, and found that it doesn't seem to register new changes to entities. I kinds of expected Cacheable to purge any entity that was modified using the DbContext, so as to make sure it's fetched again.

Am I using this wrong?

I've noticed none of the tests test a SaveChanges() after the initial setup.

Steps to reproduce

Blog aa;
using (MyContext db = services.GetRequiredService<MyContext>())
{
	// Cache the first entity in the DB
	Blog c = db.Blogs.Cacheable(TimeSpan.FromMinutes(60)).First();
	aa = c;
	
	Console.WriteLine(c.Id);
	Console.WriteLine(c.Name);
}

Blog bb;
using (MyContext db = services.GetRequiredService<MyContext>())
{
	// Pick the first entity in the DB, without caching, so we can save changes
	// Else #10 will kick in
	Blog c = db.Blogs.First();
	bb = c;

	c.Name = DateTime.UtcNow.ToString();

	Console.WriteLine(c.Name);

	db.SaveChanges();
}

Blog cc;
using (MyContext db = services.GetRequiredService<MyContext>())
{
	// Fetch the Blog again elsewhere, observe that Name has not changed
	Blog c = db.Blogs.Cacheable(TimeSpan.FromMinutes(60)).First();
	cc = c;

	Console.WriteLine(c.Name);
}

// Here we see that the two Cached entries (aa, cc) are the same object
Console.WriteLine(ReferenceEquals(aa, bb));
Console.WriteLine(ReferenceEquals(aa, cc));
Console.WriteLine(ReferenceEquals(bb, cc));

Further technical details

EntityFrameworkCore.Cacheable version: (found in project.csproj or packages.config) EF Core version: 2.2.4 IDE: VS 2019 (16.1.2)