UseInstance with interface-based serviceType does not replace previous instance

[detoxhby]

After using IResolverContext.UseInstance the first time, the next UseInstance with same interface-based serviceType (and even implementation type) will not replace previous instance.
(even with or without IfAlreadyRegistered.Replace)

Example:

interface IUser
{
   string UniqueId { get; set; }
}

class User : IUser, IEquatable<User>
{
    public Guid Id { get; set; }
    string UniqueId { get; set; }
    // ...
   // IEquatable.Equals(User) and overriden object.Equals are provided
}

[Fact]
public void Test()
{
    // base ctor creates Scope = Container.OpenScope()
    var origUser = Scope.Resolve<IUser>(); // this is from normal registration
    var newUser = new User { Id = Guid.NewGuid() };
    
    Scope.UseInstance(newUser, IfAlreadyRegistered.Replace); // this is FINE, this instance is used
    Scope.UseInstance(origUser, IfAlreadyRegistered.Replace); // this is NOT happening
   // ... nor any subsequent calls UseInstance
}

---

not really for me Solution

ℹ️ Using direct class type User will make it work properly.

This is not an option for me due to abstraction, I need to use the interface type.

---

Any help is appreciated if I can work around this problem.
(tried to override GetHashCode() as Container.UseInstance is based on that, but it is used on ServiceType which is the interface and RuntimeHelpers.GetHashCode(typeof(IUser)) does not change during type, shouldn't be a problem)

[dadhi]

Thanks for posting. I will check.

[dadhi]

@detoxhby
Please check my commit 54e897c#diff-74f9667b68d5a245baf32f72dac57ec3.

The UseInstance is obsolete (actually not in v4.1 yet but I won't be fixing the bugs for it)

Please use Use for replacing in scope or RegisterInstance for other scenarios.

I will release version 4.1.2 with the fix shortly.

[detoxhby]

Nice! 👍

Btw I've tried Use() as well looking at the container code as it is (will be) marked as obsolete, but didn't work even for first time. I hope this cache invalidation will make it happen.

[dadhi]

v4.1.2 is out on NuGet

[detoxhby]

✅ Checked new version: works fine!

Thanks for the fast response, keep up the good work! :)