How to fix import of headings in DOC/DOCX (text:h instead of text:p)?

[Friedrich W. H. Kossebau]

Hi,

it seems that the filters for DOCX (and DOC?) do not import headings as 
<text:h>, but only as <text:p> (so also without any text:outline-level 
attributes).

Can be seen e.g. in the new "Navigation" docker, it does not show any 
structure of an imported DOCX file (other than e.g. in LO).

(Found the problem actually with the generator plugin for Okular, which 
meanwhile also supports access to the structure, querying like the docker the 
outline-level property).

I would like to fix this.
So, dear DOC/DOCX import filter experts, where do I have to look exactly, to 
make headings being imported as <text:h> with the proper outline-level?

Cheers
Friedrich