C# Can'；t从特定角色中删除用户

使用WebAPI2和identity 2，我试图创建一个操作，使用用户id和角色名将用户从角色中删除。我正在使用nuget identity2示例提供的ApplicationUserManager

我的行动

[HttpPost]
[Route("RemoveUserFromRole")]
public async Task<IHttpActionResult> RemoveUserFromRole(UserRolesViewModel model) 
{
    if (!ModelState.IsValid)
        return BadRequest(ModelState);

    var result = await UserManager.RemoveUserFromRolesAsync(
        model.UserId, model.RoleNames);

    if (result.Errors.Any())
        return InternalServerError(); 

    return Ok();
}

但给定以下json，用户不会从“Mod”中删除，而是从“user”中删除：

{
    "userId": "0d5f97e4-65a0-43ad-b889-0af98a7ff326",
    "roleNames": [
        "Mod"
    ]
}

---

调试表明，当给定角色“Mod”时，正确的用户id和角色名称会传递到userRoleStore中。

这是一个错误，应该在版本2.0.1中修复，但仍然有效

db.Database.ExecuteSqlCommand(@"delete from aspnetuserroles from
aspnetuserroles ur inner join aspnetroles r on r.id=ur.roleid inner join aspnetusers 
u on u.id=ur.userid where r.name=@role and u.username=@user",
    new SqlParameter("@role",RoleName) ,
    new SqlParameter("@user",UserName));

---

谢谢-你有这方面的消息来源吗？啊-我在我的主要项目中更新到了2.0.1，但在我的测试中忘记了并停留在2.0。再次感谢

{
    "userId": "0d5f97e4-65a0-43ad-b889-0af98a7ff326",
    "roleNames": [
        "User"
    ]
}

{
    "userId": "0d5f97e4-65a0-43ad-b889-0af98a7ff326",
    "roleNames": [
        "Mod"
    ]
}

db.Database.ExecuteSqlCommand(@"delete from aspnetuserroles from
aspnetuserroles ur inner join aspnetroles r on r.id=ur.roleid inner join aspnetusers 
u on u.id=ur.userid where r.name=@role and u.username=@user",
    new SqlParameter("@role",RoleName) ,
    new SqlParameter("@user",UserName));