Hello, I don't understand purchase links to rfqs in v9

If I go from an rfq to an item the item does not show the purchase block linking to rfqs 

as in this short video https://youtu.be/r3-iadM7w44

If I go from purchases > products, the purchases block is present but the count is zero

even though the item is in 2 RFQs. https://goo.gl/WuHq0G

(Odoo) says that for the count to be non zero there have to be confirmed orders

1. Navigation behaviour is not the same from an rfq as from purchases > products

2. What is the definition of 'an item is purchased' - is it / should it be 'an item is on an RFQ' or 'an item has been ordered'?

PS this post does not want to save url links or include images