Commutativity conjecture for instanton knot Floer differentials

Suppose $K\subset S^3$ is a quasi-alternating knot. Let $\underline{\operatorname{KHI}}(-S^3,K)$ be the instanton knot Floer homology group, and let $d_+$ and $d_-$ be maps on it. The maps shift the grading associated to the Seifert surface by one. Commutativity conjecture for instanton knot Floer differentials. The maps satisfy

$$d_+\circ d_-\doteq d_-\circ d_+,$$

where $\doteq$ means equality up to multiplication by a unit in $\mathbb{C}$. This is proposed so that algebraic methods used for quasi-alternating knots can determine the differentials from the Alexander polynomial and signature; the source does not state that the conjecture has been proved.