The nilpotent generalized near-group fusion-ring conjecture

Let $\mathcal{C}$ be a braided generalized near-group fusion category. Write $R(m,n)$ for the corresponding generalized near-group fusion ring, with $m,n\in\mathbb{Z}_{\geq 1}$, and let $K$ be a finite abelian group. Nilpotent generalized near-group fusion-ring conjecture. If $\mathcal{C}$ is nilpotent, then the Grothendieck ring of $\mathcal{C}$ is isomorphic to

$$R(m,n)\times\mathbb{Z}K$$

for some $m,n\in\mathbb{Z}_{\geq 1}$ and finite abelian group $K$. The statement gives a proposed classification of the Grothendieck rings of nilpotent braided generalized near-group fusion categories; no resolution is supplied in the source.