Servicer point button bug

Hello,

I found a bug with the service point button (‘Kies afhaalpunt’ in Dutch).
In our webshop, ship to a different address is unchecked by default. When the customer fils in his invoice address, the fields for ‘different shipping address’ are also populated with these details, but you can’t see this unless you check the box ‘ship to different address’.
Whenever you change your invoice (and thus delivery address because the box is unchecked) details to a different postal code, the service point button still auto populates the original postal code from the ‘ship to different address’ fields.

It’s possible this only happens when the user is logged in. Our website is in test mode to I can only test the checkout when I’m logged in.

This is quite annoying.
If needed I can send some screenshots.