  We revisit the question of string order and hidden symmetry breaking in the
q-deformed AKLT model, an example of a spin chain that possesses generalized
symmetry. We first argue that the non-local Kennedy-Tasaki duality
transformation that was previously proposed to relate the string order to a
local order parameter leads to a non-local Hamiltonian and thus does not
provide a physically adequate description of the symmetry breaking. We then
present a modified non-local transformation which is based on a recently
developed generalization of Witten's Conjugation to frustration-free lattice
models and capable of resolving this issue.
