i.e. when spAutoFit is present in DOCX, and size of
the textbox is relative.
See also commit cab956c480
(tdf#112312 DOCX legacy shape export: keep fixed size).
Co-authored-by: Attila Szűcs (NISZ)
Change-Id: I29af97001954ad353a386164b68cd22f6230e3e5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98401
Tested-by: László Németh <nemeth@numbertext.org>
Reviewed-by: László Németh <nemeth@numbertext.org>