Li–Zinger formula for reduced Gromov–Witten invariants of quintics

Let $Q\subset\mathbb{P}^4$ be a smooth quintic, and let $N_{g,d}(Q)$ denote its genus $g$, degree $d$ Gromov–Witten invariant. Let $N'_{h,d}(Q)$ be the reduced invariant defined by the modular Euler class construction for $d>2g-2$. Li–Zinger conjecture. There are universal constants $c_h$ such that, for all $d>2g-2$,

$$N_{g,d}(Q)=\sum_{0\leq h\leq g}c_hN'_{h,d}(Q).$$

This conjecture predicts a universal relation between ordinary and reduced Gromov–Witten invariants of quintic threefolds. The supplied text gives no resolution status.