numbering collision

[Heikki Johannes Junes]

There seem to be some collision (1.5.32 and 1.4.11) when
fingering is put above tuplets. An example:

\score { 
    \notes \transpose c'''
    \context Staff {
            \voiceOne
            \times 2/3 {a,8^5 c^1 b'8^2} 
            \times 2/3 {c'8^5 d^1 a,,8^2} 
            \times 2/3 {d8^5 d^1 r8^2} 
    }
}

I would like to rise the finger numbering for the centermost note in the
tuplets. Is there a "right" way to do it? I like to keep both tuplet
number (3) and fingering numbers (5 1 2) above the notes.

--
      Heikki Junes