Both exports wrote one geometry for the whole document, so a title page's
margins survived import and were lost on the next save. Each ODF section master
now names a page layout of its own — the document's, shifted by the section's
difference, so what the header/footer pass folded into it survives — and every
w:sectPr carries its section's w:pgMar. DOCX import takes the document pair from
the first section, the one .tiptap's padding draws.
The parity harness spread a 458-page document's word list into Math.max and blew
the stack; the longest fixture was never measured.
Steffen Becker
860e25d8c8