I'm currently looking at implementing a sign up form on a website within Umbraco. When the user signs up, I need it to not sign them in automatically. I am using the code below but for some reason it still signs them in after completing the form, even though I am setting WithAutomaticLogIn to false. Is there something I am doing wrong or is it a problem with Umbraco?

var registerModel = memberModelBuilderFactory
.CreateRegisterModel()
// Set the member type alias to use for the new member
.WithMemberTypeAlias(Constants.Conventions.MemberTypes.DefaultAlias)
// If null or not set, this will redirect to the current page
.WithRedirectUrl(null)
// Set to true if you want the member editable properties shown.
// It will only displays properties marked as "Member can edit" on the "Info" tab of the Member Type.
.WithCustomProperties(true)
// By default the member will be logged in automatically after registration.
// Set this to false if the member should not be logged in automatically.
.WithAutomaticLogIn(false)
.Build();