Problem with custom object changing while overriding UpdateAsync

[N1ghtStorm]

Description

I have a model, that has it's DbSet in DbContext

   public class Human : Identifiable
   {
       [Attr("name")]
       [StringLength(128)]
       public string Name { get; set; }

       [Attr("second-name")]
       [StringLength(128)]
       public string  SecondName{ get; set; }
   }

I have a JsonApiController, where PatchAsync method is overriden:

public class PeopleController : JsonApiController<Human>
{
             public PeopleController(
             IJsonApiContext json_api_context,
             IResourceService<Human> resource_service,
             ILoggerFactory logger_factory,
               : base(json_api_context, resource_service) {}

// Patch method:
    [HttpPatch("{id}")]
    public async override Task<IActionResult> PatchAsync(int id, [FromBody]Human human)
    {
        human.SecondName = "Some Second Name";
        return base.PatchAsync(id, human);
    }
}

The problem is:
This operation

"human.SecondName = "Some Second Name"

doesnt affect state of "human" object, we even can return base method like this:

"return base.PatchAsync(id, new Human());"

or

"return base.PatchAsync(id, null);"

the final changes in database will be taken from initial state of entity(that was taken exactly from request)

}

Environment

• JsonApiDotNetCore Version: 3.1
• .Net Core 2.2
• Other Relevant Package Versions:

[maurei]

This problem is described in #536 and also describes a work around.

This issue will be tackled in v4 in a more elegant way.

Let me know if the other issue has enough instructions for you to work around the issue.

[N1ghtStorm]

This problem is described in #536 and also describes a work around.