Query string breaks Woocommerce filter (or any URL parameter)

Heads up to anybody using WooCommerce’s native filtering (or anything that adds a query parameter like /?foo=bar to the URL), this plugin might break your filter. For example…

When a user visits our homepage and verifies their age, the page reloads and the URL becomes ourstore.com?age-verified=123456

On our shop page, we use a URL like ourstore.com/shop/?filter_color=red to show “red” term products in the “color” attribute.

When somebody visits that filter page as their first visit, after they verify age the URL becomes ourstore.com/shop/?filter_color=red?age-verified=e63e7c08bd which breaks the filter because you can’t have multiple question marks. Additional query parameters should be added with an ampersand (&), like /?filter_color=red&age-verified=123456

Plugin hasn’t been updated in over a year, but in case you still check these boards, Chase, we’d appreciate a fix! I’ll have to disable and look for something else in the meantime, but hanks for all your work on this.