Reset (not empty) customization fields

[McRae]

Hi, 

I'm trying to reset the customization fields of a specific product.
Currently, i succeed in saving them, but when i visit other pages of my website and come back to this product page, the customization fields are still saved and displayed.
My aim is to give the user a "Reset customization" button that really reset the data and not just empty them temporarily (while you stay on the page)...

Is there a simple way to do this ?

[TiaNex Shopping]

it's right too save the product customization data for the user,

if a user want to this customization product and another product,if reset the data,he can not buy together

Edited December 4, 2017 by VicOffers (see edit history)

[McRae]

Thanks, but the question is not to tell wether it's right or not to save the data : i know it's right and useful 
But I need to reset/delete this data if wanted by the user, and that's what i need your help on