Ha! Well done, guys - you actually made it LONGER!! 
Before: item_type: (custom_sale) / $12.00
After: _shopify_item_type: (custom_sale) / $12.00
So, I see that this is something you can fix - can you maybe, like, do it right this time?
Chris
P.S. I do apologize for my tone, but with the speed in which Shopify is racing downhill, I kinda feel that no one there is even checking these boards anymore…