ottava bracket and fingering

[Orm Finnendahl]

Hi,

 the fingering of columns is placed outside the ottava bracket in the
following example:

\version "2.13.43"

\new Staff { \relative c''' { 
  \override OttavaBracket #'outside-staff-priority = #200000
  \override OttavaBracket #'staff-padding = #60
  \override OttavaBracket #'y-offset = #60
  \override OttavaBracket #'padding = #60

  \ottava #1 
  a16-5 ees!16-2 g,16-1
  aes'!16-4 r16 e16-2 
  <c g' >16^\markup{\override #'(baseline-skip . 1.7)
                    \column {\finger 4 \finger 1}}
  f16-3}}

Attached is the png to illustrate the problem.

As you can see, I tried to change different settings of the properties
of ottava bracket (quite drastically to provoke an effect) which
don't seem to work. What am I doing wrong?

--
Orm

sample.png
Description: PNG image