Formatting bug with ampasands - WooCommerce Layered Nav

[jimleeder]

I found a problem with the WooCommerce layered nav plugin caused by WordPress itself. When you have products shown filtered by an attribute (for example - red) and then click the number of products to show (such as 45) upon page load the ampasand (&) changes to the HTML entity instead.

I commented out a few lines on wp-includes/formatting (example - line 238 - $curl = preg_replace( '/&(?!#(?:\d+|x[a-f0-9]+);|[a-z1-4]{1,8};)/i', '&', $curl );) which now stops this happening.

Please have a look as I know this will be overwritten when WordPress is next updated.

Best Regards,

Jim.