How to ensure a clean copy of the form is sent via email

I published a form and copied the link to a email, once the link was received it was pre-populated with information I was testing.  How do I make sure the form is ready to send via email.

This happens when I test the logic on the templates and data is still there when I published the form to send.

Can you share to us the link you used to in the email. It is possible the link you used contains field with prepopulated values using URL parameter.

User guide: Prepopulating Fields to Your JotForm via URL Parameters

Another possibility is the form have the Autofill option ON. Because you made the test on the same browser, the browser saved cache data populates the form you used to test.

Disable Autofill also on the form.