Bugfix: Product shortcode triggering error when category is empty

[DogByteMarketing]

Using the product shortcode with no categories triggers an error because type is not being passed to WP_Query.

[crftwrk]

I don't get an error when an empty category is selected in the shortcode? What is the test case?

[DogByteMarketing]

[31-Aug-2023 20:36:11 UTC] PHP Fatal error: Uncaught Error: Call to a member function is_on_sale() on null in E:\www\test\wp-content\themes\test\woocommerce\loop\sale-flash.php:25
Stack trace:
#0 E:\www\test\wp-content\plugins\woocommerce\includes\wc-core-functions.php(345): include()
#1 E:\www\test\wp-content\plugins\woocommerce\includes\wc-template-functions.php(1422): wc_get_template('loop/sale-flash...')
#2 E:\www\test\wp-includes\class-wp-hook.php(308): woocommerce_show_product_loop_sale_flash('')
#3 E:\www\test\wp-includes\class-wp-hook.php(332): WP_Hook->apply_filters('', Array)
#4 E:\www\test\wp-includes\plugin.php(517): WP_Hook->do_action(Array)
#5 E:\www\test\wp-content\plugins\bs-swiper-main\templates\sc-swiper-card-product.php(77): do_action('woocommerce_bef...')
#6 E:\www\test\wp-includes\shortcodes.php(355): bootscore_product_slider(Array, '', 'bs-swiper-card-...')
#7 [internal function]: do_shortcode_tag(Array)
#8 E: in E:\www\test\wp-content\themes\test\woocommerce\loop\sale-flash.php on line 25

[crftwrk]

Got it, thank you.