  It is proved that the (volume and orientation-preserving) quantum isometry
group of a spectral triple obtained by deformation by some dual unitary
2-cocycle is isomorphic with a similar twist-deformation of the quantum
isometry group of the original (undeformed) spectral triple. This result
generalizes similar work by Bhowmick and Goswami for Rieffel-deformed spectral
triples in [Comm. Math. Phys. 285 (2009), 421-444, arXiv:0707.2648].
