so this was voted on as part of McConnell/Schumer rules governing the trial?
No. There is nothing on the official record on this subject. Just news reports of "back room" agreements.
The information is going to come out.
Using the same argument that DEMs do wrt/Bolton (with respect to, for anybody wondering), it is essential that this come out NOW, before a verdict is rendered, so the senate doesn't have egg on its face on account of working with a fatally incomplete record.