Headings wrapped in ordered lists during import with LibreOffice 4.3.3

When importing documents using LibreOffice 4.3.3 (shipped with debian jessie), the headings are wrapped in an ordered list structure such as this:

1.
 
 11. 
 111. 
 1111. 
 11111. (((
 ===== Heading text =====
 )))