It looks like they banked 25 of their 2022 points into 2023, then needed to borrow 18 points back from 2023 into 2022 (probably realized they needed some points after they had banked the 25). Once those points were moved from 2022 to 2023, they are stuck there. The previous owner did use 18 2023 points, leaving 132 remaining. Add the 25 points banked from 2022 and you get 157 points. 25 of them expire at the end of the 2023 UY.
If I were to bank all of my points this year into next, leaving me with none, then decided I wanted to make another reservation this year, I’d need to borrow from next year. I couldn’t get the points from this year returned.