It’s not a bad idea to consider, but in your example, if a user wants to click on Yuri to change the value, as their mouse pointer reaches the pinned fields area, the field they want to change will suddenly move to a different location.
This could be rather frustrating, so I’m not therefore sure that this is the ideal UI.
If, as an alternative to avoid this, the empty fields are all pushed to the end of the set of pinned fields, then there could be movement of fields as they change from empty to filled, plus it won’t be possible to adhere to a user’s preferred field order.