I am trying to:
Present Product category description without a comma.
When Woocommerce product ins in multiple categories a comma appears when using the shortcode.
I tested this by placing a product in one category and multiple categories.
When in one category there is no comma. When in multiple categories the comma appears.
How do I not have the comma appear when in multiple categories?
Link to a page where the issue can be seen: hidden link
The problem is that you are outputting the description of the product category, not the name of the product category, and not all of your product categories have descriptions, so the shortcode creates a place for the description, but the description itself is empty.
The default separator for multiple taxonomy terms is a comma, so I suggest you resolve the problem by updating the wpv-post-taxonomy shortcode to include the separator attribute as an empty string, or perhaps a space if you may be outputting more than one description, i.e.