Update src/sage/combinat/symmetric_group_representations.py

move .H to cached part

Co-authored-by: Travis Scrimshaw <[email protected]>

src/sage/combinat/symmetric_group_representations.py

@@ -1118,7 +1118,7 @@ def augmented_matrix(g):
         total_system = sum((augmented_matrix(g) for g in G), [])
         null_space = matrix(F, total_system).right_kernel()
         U = matrix(F, d_rho, d_rho, null_space.basis()[0])
-        return U.hermitian_decomposition()
+        return U.hermitian_decomposition().H
 
     def _representation_matrix_uncached(self, permutation):
         r"""