Content edits to HTML fields are not saved when form is edited through a portal page. sp-tinymce-editor directives are not properly updating the model.

1. Log into an OOB instance
2. Open an incident form via Service Portal
i.e
https://{instance-name}.service-now.com/sp?id=form&table=incident&sys_id={sys_id}
3. Configure the form layout and add a HTML field
4. On the incident form, fill out the HTML field with a value i.e '1111'
5. Save the record
6. On the incident form, select and **cut (ctrl+X)** the value (i.e '1111') from the HTML field so that it is empty
7. Save the form

Observe the record still retains the previous value that was removed (i.e '1111'), instead of showing the HTML field empty. This behaviour also occurs with images that are cut from the html content.

This is expected behaviour for the existing integration with the TinyMCE HTML Editor. The issue is with the ui-tinymce plugin for Angular JS.
Ref.: https://github.com/angular-ui/ui-tinymce/issues/323

You can update the $scope.c.submit function on the affected widget by adding this line:

c.desc = tinymce.activeEditor.getContent();

This will make sure that during submit the correct c.desc value is captured, as it seems that tinymce does not recognise the new value after a cut event. For example:

$scope.c.submit = function() {
console.log(c.desc);
c.desc = tinymce.activeEditor.getContent()
console.log(c.desc);
c.submitted = true;
c.submitText = 'Submitting the ticket...';
submitIt();
}