Survival Mode Refresh Countdown - Elektra Essential

DrStrange-616

I can see how the refresh clock starts its 3 hour countown if you complete a wave in a survival mode node. I guess. However, this shouldn't be happening with 1-wave nodes like he Elektra Essential in Hand Fortress. I gave it a go, got wiped and the refresh countdown started. As it's one wave, that shouldn't be, should it?

eta: maybe it's counting each group of 3 as a wave, even though it isn't a wave in the true sense? the points also reset. hmmm...