transformation list is still necessary to recreate the same state after a "break
out" as needed when painting fixed block-containers. I haven't found a better
way to handle this case, yet.
Is there a reason for keeping areas from absolute and fixed
block-containers in the flow of normal areas?
IIUC absolute and fixed block-containers generates areas with an
area-class of xsl-fixed and it is hinted that such areas is taken out of
the flow and placed under the page-area:
Absolutely positioned areas are taken out of the normal flow.
The area generated is a descendant of the page-area
If I'm right about this, the break-out code can be avoided by placing
the absolute and fixed block-container differently in the area tree.