left offsetting dotted note leaves dot unmoved

[Marten]

Hi all,
I'm trying to left offset a dotted note in a CueVoice, but although the 
note is shifted left as expected, the dot is not moved left.
How can I make the dot go left as well?
(I don't want to move the alternative voice to the right, or it would be 
difficultly readable.)
Cheers,
Marten

CODE:

%{
Left offsetting a dotted note leaves dot unmoved
%}

\version "2.18.2"

myMusic = {
        << \voiceOne { g2~ g8[ g] } \new CueVoice = "OddText" { 
\voiceTwo
        \once \override NoteColumn.force-hshift = #-25 g2. %\revert 
NoteColumn.force-hshift 
        } >> \oneVoice
        g8[ f]
        }

\score {
        <<
                \new Staff {
                        \key d \minor
                        \new Voice {\relative c'' \myMusic }
                }
        >>
        \layout {}
}