Random order seed is taken into account only if the order by option is "random"

[fancyweb]

When you only use the --random-order-seed 123 without also using --order-by random, the seed is not taken into account and no warning message is displayed. This might be a common mistake, I think the DX could be improved.

Could we either:

1. Take the seed into account by switching the default order by to random when it is not specified and there is a given seed.
2. Display a warning message when there is a given seed but the order by is not random (it's obviously a mistake I guess).