Unticking "Use Artboards" when saving PDF does not work as expected
Expected result: A PDF file containing a single page of all the artwork in the document. Artboards should be completely ignored. Page size, cropbox, artbox, trimbox and bleedbox should all be equivalent to the total size of all the artwork in the document.
Actual result: PDF contains one page for each artboard, seemingly identical to what happens when "Use Artboards" is ticked.