There might be other options, but Random Reset seems might work
Names Default To Here(1);
dt = Open("$SAMPLE_DATA/Cities.jmp");
obj = Distribution(Column(:CO));
Random Reset(112);
obj << Fit Lognormal(Goodness of Fit(1));
wait(1);
obj = Distribution(Column(:CO));
Random Reset(112);
obj << Fit Lognormal(Goodness of Fit(1));
-Jarmo