I've implemented a filter as per this WooCommerce article on taxes:
add_filter('woocommerce_adjust_non_base_location_prices', '__return_false');
This effectively 'ignores' tax rates on checkout: an €8,99 product (where prices are added inclusive of tax) being sold from a UK store will cost €8,99 to a German customer, a French customer or an ROI customer. This all works fine on the front end.
However, I just created an order in the backend for a German customer, and that €8,99 product is being added to the order at €7,49 with no tax. I understand from a tax perspective why this is happening (a UK store selling in Germany shouldn't apply tax, so 8.99 - 20% UK VAT = 7.49), however this seems to be ignoring my woocommerce_adjust_non_base_location_prices filter.
At the moment my filter call is just a single line in a custom plugin, so being implemented at plugins_loaded, I guess. There's no condition for it (e.g. if (!is_admin()) {}), so I'm wondering if I need some other kind of condition to ensure it is applied to admin orders, or if I'm looking at a bug?
