Django表单向导，如何重置/清除向导?

I have created a Django Form Wizard which works fine. However, after finishing the wizard and starting it again, it loads the data generated during its previous use. Instead I would like it to clear the previous wizard state and start over once it was finished successful. I have tried modifying the done method of the wizard, but it doesn't do the trick:I have created a Django Form Wizard which works