Torsion-freeness conjecture for the cohomology of affine Weyl toric arrangement complements

Let $\widetilde{W}$ be an affine Weyl group, and let $\mathcal{T}_{\widetilde{W}}$ be the corresponding toric arrangement. Its complement is the space obtained by removing the arrangement from the associated torus. Torsion-freeness conjecture. The integer cohomology of this complement is torsion free; consequently, it coincides with the De Rham cohomology computed by De Concini and Procesi. The conjecture is stated as a generalization of the explicit computation for the $B_2$ toric arrangement, where the homology and cohomology are torsion free. Although the source says it will be proved in a future paper, the supplied status marks it as resolved.