line breaks in SVG files are not rendered correctly

When loading an svg-file, which contains text field with line breaks, these
line breaks are not displayed.

How to reproduce:
Open appropriate .svg file, e.g.
http://upload.wikimedia.org/wikipedia/commons/1/1e/Public_key_signing.svg
In firefox the file is displayed as it should be, in Gwenview the line breaks
are missing.

Expected behaviour:
Show the text with the line breaks.

Observed behaviour:
The text is simply shown without line breaks, i.e. the text continues in the
same line intersecting other objects of the vector graphic.