I understand that these machines have the option of a Warm rinse. 

However, to get a truly warm wash, if you don't run a hot/warm rinse before a cycle, you have to use the "Hot" selection, which only gives a cold rinse.

If, after the machine finishes filling for the main-wash you switch to "Warm/Warm," would the machine fill with Warm water for the rinses, or would it be cold since you had started the cycle with "Hot/Cold" selection?

Whilst I understand Warm rinses can be "wasteful," depending on how your water is heated, this is a question I've wondered about for some time.