How to autofill forms for only logged in users who provided details?

Hello,
I am using this code for disabling auto-fill of the fields on the checkout form

add_filter('woocommerce_checkout_get_value','__return_empty_string', 1, 1);

However, this is triggering even for logged in users who already provided their billing details. As a result, they have to fill the form again and again.

How do I do the following:
1. Disable auto-fill for guests’ checkout only.
2. And keep auto-fill of checkout fields enabled only for registered/logged-in users.

Thanks!

• This topic was modified 3 years, 6 months ago by neo4evr.