ODF problem with margin between paragraphs of same style

Hi all,

LibreOffice and all older versions down to OOo1.1.5 (the oldest one I 
have installed) fill the margin between two paragraphs with the 
background of the padding rectangle, in case that the two paragraphs 
have got the same style.

That behavior is not correct. According to CSS, which is referenced in 
the end by ODF 1.2, the margin is _always_ transparent.

I'm writing here to the dev-list, because you will have to implement any 
changes.

The problem is described in 
https://bugs.documentfoundation.org/show_bug.cgi?id=106021. The bug 
report has a file attached and screenshots how this file is rendered in 
other applications.

What to do?
(1) Make a hard cut and render it correctly if a document is saved in 
ODF 1.3?
(2) Add an attribute to ODF 1.3 to allow such rendering?

Other suggestions?

Kind regards
Regina