encoding in embedded svg in FOP

[saggmannen]

Hi, how do I specify the encoding when I embedd a svg-object in my
xsl-fo? E.g:

<fo:instream-foreign-object>
<svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="18cm"
height="10cm"> <svg:text x="10" y="10">hellö</svg:text>
</svg:svg>
</fo:instream-foreign-object>

this creates an error when processed by FOP (because of the
'ö'-character)
the encoding of my xsl-fo ('iso-8859-1') doesn't seem to affect the
encoding for the embedded svg-object.