Comment 1 for bug 368250

We currently assume that the first page is right-hand-side and that the page stack (accessible pages) is contiguous. Munging with the page sides will require us to be able to display synthetic "empty" pages.

e.g. inferring page sides based off the title page could cause the first page image to be LHS or make a gap in the pages to display in 2up mode. We want to support this but the underlying part isn't implemented yet.