[Inkscape-user] Export to PNG behavior

Hi all, I've been working heavily with Inkscape these last couple of months, making technical illustrations that will be shown as a series of images. So I've been using the Export PNG Image dialog - a LOT. And it seems to have an odd behavior: the export area defaults to "Drawing" whenever something is selected, then un-selected. Is there any way to keep it in "page" mode so I can always export the same size of image based on the canvas size?

Also, are others here affected by this? perhaps we could get the devs to change it.