This shortcode is much like the product category shortcode. The attributes are the same also, the only difference is that you can display WooCommerce products by product tags instead.
You can contribute code to this plugin via GitHub: https://github.com/Sebs-Studio/WooCommerce-Display-Products-by-Tags
Use the WordPress.org forums for community support. If you spot a bug, you can of course log it on Github instead where I can act upon it more efficiently.
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