You don’t see anything during the POST process, unless the form is invalid and needs to be redisplayed - in which case you have the opportunity to reset the value of the fields.
You may want to become more familiar with what all is happening in each of the server and the browser when a form is being submitted. You may want to take some time to review the docs at Working with forms | Django documentation | Django.
Also see my reply at problem with redirect - #4 by KenWhitesell for a brief overview of what happens during the HTTP request / response cycle with form processing.