pathofexile trade search not working properly for this mod

It is looking like searching for this mod isn't working right on trade:

(fractured) #% increased Mana Reservation Efficiency of Skills

I have one listed with the mod, but searching for the mod gives no results:

https://www.pathofexile.com/trade/search/Sentinel/bp3rvZaSL

But checking the listing by name and account I see that the item is listed on trade:

https://www.pathofexile.com/trade/search/Sentinel/25k7O7jCk


Does this mean that searching for this particular fractured mod isn't working at all currently on helmets? the same search line does appear to work for body armours:

https://www.pathofexile.com/trade/search/Sentinel/Jy8Y0EYCl

Ah, I see... I did try plugging in negative numbers when testing, but didn't consider searching for Reduced Mana Reservation Efficiency of Skills when it had Increased Mana Reservation Efficiency of Skills XD