Morrison's reverse geometric transition conjecture

Let $T(Y,\overline{Y},\widetilde{Y})$ be a geometric transition, and let $Y^{\circ}$ and $\widetilde{Y}^{\circ}$ be mirror partners of $Y$ and $\widetilde{Y}$, respectively. Morrison's reverse-transition conjecture. The mirror partners are linked by a reverse geometric transition $T^{\circ}(\widetilde{Y}^{\circ},\overline{Y}^{\circ},Y^{\circ})$ as in the source's diagram. This conjecture is motivated by mirror symmetry and examples, but remains unresolved in the supplied text.