Created attachment 44019 [details] Test file In git master, full justification is ignored and text is always left aligned (or right, based on main direction). Not reproducible with 3.3.1
Can confirm this.
digging into this I bet I can see where it went wrong
http://cgit.freedesktop.org/libreoffice/writer/commit/?id=cb3cd9644fdc556234f62fb80f6ecf60afedf3cf sw/source/core/text/itradj.cxx call to FormatBlock() went away by accident