Hiya with the new simple application process(new application) I had a look at the application but i did not see anywhere on the form indicating that you should mension about your qualification. I that is in the form is the work experience history in the past 10 years. So it depends on where you have reached with your application , i mean the stage the initial stage you wont need to mension about your qualification probably after 4 months in line. So lmy point is it depends on how many months you are left to complete the masters. If by the time they request for the for documentation and you will have already done exams and results out just waiting for your graduation and certificate you could try to look for evidence to support that.
Otherwise you can only mension it if you have some evidence. I did support mine while waiting for the transcript.s