Apply d8ddd9ef to deterministic exogenous variables.

(cherry picked from commit eceba8d6)

matlab/perfect-foresight-models/make_ex_.m

@@ -96,7 +96,7 @@ if isfield(M_, 'det_shocks')
             if ~M_.det_shocks(i).multiplicative
                 oo_.exo_det_simul(k,ivar) = v;
             else
-                oo_.exo_det_simul(k,ivar) = oo_.exo_det_simul(k,ivar) * v;
+                oo_.exo_det_simul(k,ivar) = oo_.exo_det_simul(k,ivar) .* v;
             end
         end
     end