Save the seed when saving the MCMC draws, and restore it with load_mh_file
Otherwise if a user runs a mod file with load_mh_file several times in a row to retry convergence, the MAT file with the draws is modified but the proposals remain the same.
Otherwise if a user runs a mod file with load_mh_file several times in a row to retry convergence, the MAT file with the draws is modified but the proposals remain the same.