FormSavingNotification CancellOperation does not reset the loader, cannot resave without reloading page.

[pimpaard]

A brief description of the issue goes here.

When creating a FormSavingNotication and calling notification.CacnelOperation(new EventMessage()) the loader does not reset to "Save" which means all input gets lost if you need to cancell the formSavingNotification.

Reproduction

Steps to reproduce

Follow: https://docs.umbraco.com/umbraco-forms/developer/extending/adding-an-event-handler

Create FormNotificationSavingHandler:

public class FormSavingNotificationHandler : INotificationHandler<FormSavingNotification>
{
    public void Handle(FormSavingNotification notification)
    {
        foreach (var form in notification.SavedEntities)
        {
            notification.CancelOperation(new EventMessage("test", "cancel form saving"));
        }
    }
}

public class NotificationComposer : IComposer
{
    public void Compose(IUmbracoBuilder builder)
    {
        builder.AddNotificationHandler<FormSavingNotification, FormSavingNotificationHandler>();
    }
}

Then create a form and click on save

Expected result

Pop-up with the message and then the save button being set back to "save"

Actual result

But "Save" button keeps being a spinner.

[AndyButland]

Thanks for reporting. We've replicated the issue and resolved it, so will have a fix in the next round of releases.