B/X Known World
My read is that the rest is interrupted by the fight, so until you resume it, those spells would not count as additional interruptions.
Sure. But we are talking about gamers here. If there is any even potential ambiguity, someone will exploit it.That was my reading as well but there is merit to adding them together in order to thwart spell slot dump just before the rest completes & any risk of interruption is unlikely