WooCommerce Product Bundles 8.1.2

* Fix - Prevented stock meta form saving while 'woocommerce_process_product_meta' is running. Should prevent some edge-case issues with duplicate bundled items.
* Tweak - Consider if customer is tax exempt when formatting cart item display prices.
* Tweak - It is now possible to calculate and display the quantity of remaining bundles based on the availability of the bundled product with the lowest stock (bundles with static quantities only). To enable, use: add_filter( 'woocommerce_bundle_display_bundled_items_stock_quantity', '__return_true' );
* Tweak - Dropped the use of debug options - please use debug constants instead. See 'WC_Bundles::define_constants'.

Fix – Prevent ‘WC_PB_Admin_Notices’ from adding messages to the Inbox when WooCommerce Admin is disabled.
Fix – Declared support for WooCommerce 4.3.

* Feature - Added free Product Bundles mini-extension recommendations in the WooCommerce Inbox.
* Feature - Check if the server is able to perform loopback requests and display a warning if the test fails.
* Feature - Check if PHP is truncating form fields on edit-product pages when updating a Product Bundle and display a warning.
* Feature - Check if the pricing configuration of a Product Bundle is incomplete and display a warning in the edit-product page.
* Tweak - Remove '- optional' suffix from optional bundled items. To bring it back: add_filter( 'woocommerce_bundles_optional_bundled_item_add_suffix', '__return_true' );
* Tweak - The 'stock_status' of Bundles in the product lookup table now takes child availability into account: Bundles with an 'Insufficient stock' availability status now appear as 'outofstock' in the lookup table.
* Tweak - Added loopback test results in Status Report.
* Fix - Updated the datastore logic of Product Bundles to update the 'tax_status' and 'tax_class' product lookup table columns.