Unable to remove user external login

I've trying the MVC 5.2 template with individual account. Everything works except when I trying to remove the user's login that I get the following error message:

The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. If the foreign-key does not support null values, a new relationship must be defined, the foreign-key property must be assigned another non-null value, or the unrelated object must be deleted.

on the following line of ManagerController:

var result = await this.UserManager.RemoveLoginAsync(this.User.Identity.GetUserId(), new UserLoginInfo(loginProvider, providerKey));

This is the complete RemoveLogin action:

[HttpPost]
[Route("RemoveLogin")]
[ValidateAntiForgeryToken]
public async Task<ActionResult> RemoveLogin(string loginProvider, string providerKey)
{
    ManageMessageId? message;
    var result = await this.UserManager.RemoveLoginAsync(this.User.Identity.GetUserId(), new UserLoginInfo(loginProvider, providerKey));
    if( result.Succeeded )
    {
        var user = await this.UserManager.FindByIdAsync(this.User.Identity.GetUserId());
        if( user != null )
            await this.SignInAsync(user, isPersistent: false);
        message = ManageMessageId.RemoveLoginSuccess;
    }
    else
        message = ManageMessageId.Error;

    return this.RedirectToAction("ManageLogins", new { Message = message });
}