  We study spatial isovector meson correlators in $N_f=2$ QCD with dynamical
domain-wall fermions on $32^3\times 8$ lattices at temperatures up to 380 MeV
with various quark masses. We measure the correlators of spin-one isovector
operators including vector, axial-vector, tensor and axial-tensor. At
temperatures above $T_c$ we observe an approximate degeneracy of the
correlators in these channels, which is unexpected because some of them are not
related under $SU(2)_L \times SU(2)_R$ nor $U(1)_A$ symmetries. The observed
approximate degeneracy suggests emergent $SU(2)_{CS}$ (chiral-spin) and $SU(4)$
symmetries at high $T$.
