sk1 crashes when opening .svg file

[Mantas Kriaučiūnas]

tried to open attached .svg file with sk1 version SVN trunk 588 and program freezes at document parsing, start document proccessing dialog .
Error is:
ubuntu@baltix:~$ sk1
shared memory images supported
Cairo initialized!
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/sk1/app/plugins/Filters/svgloader.py", line 979, in Load
    xml_reader.parse(input_source)
  File "/usr/lib/python2.5/xml/sax/expatreader.py", line 107, in parse
    xmlreader.IncrementalParser.parse(self, source)
  File "/usr/lib/python2.5/xml/sax/xmlreader.py", line 123, in parse
    self.feed(buffer)
  File "/usr/lib/python2.5/xml/sax/expatreader.py", line 207, in feed
    self._parser.Parse(data, isFinal)
  File "/usr/lib/python2.5/xml/sax/expatreader.py", line 301, in start_element
    self._cont_handler.startElement(name, AttributesImpl(attrs))
  File "/usr/lib/python2.5/site-packages/sk1/app/plugins/Filters/svgloader.py", line 338, in startElement
    getattr(self, method)(attrs)
  File "/usr/lib/python2.5/site-packages/sk1/app/plugins/Filters/svgloader.py", line 935, in use
    if data[0] == 'object':
TypeError: 'NoneType' object is unsubscriptable
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/sk1/app/UI/command.py", line 49, in Invoke
    apply(self.get_method(self.command), self.args + args)
  File "/usr/lib/python2.5/site-packages/sk1/app/UI/mainwindow.py", line 686, in LoadFromFile
    self.docmanager.OpenDocument(filename, directory)
  File "/usr/lib/python2.5/site-packages/sk1/app/managers/docmanager.py", line 68, in OpenDocument
    doc=dlg.RunDialog(self.open_callback, filename)
  File "/usr/lib/python2.5/site-packages/sk1/app/UI/dialogs/progressdialog.py", line 50, in RunDialog
    result=callback(arg)
  File "/usr/lib/python2.5/site-packages/sk1/app/managers/docmanager.py", line 89, in open_callback
    doc = load.load_drawing(filename)
  File "/usr/lib/python2.5/site-packages/sk1/app/io/load.py", line 373, in load_drawing
    return load_drawing_from_file(file, filename)
  File "/usr/lib/python2.5/site-packages/sk1/app/io/load.py", line 346, in load_drawing_from_file
    doc = loader.Load()
  File "/usr/lib/python2.5/site-packages/sk1/app/plugins/Filters/svgloader.py", line 979, in Load
    xml_reader.parse(input_source)
  File "/usr/lib/python2.5/xml/sax/expatreader.py", line 107, in parse
    xmlreader.IncrementalParser.parse(self, source)
  File "/usr/lib/python2.5/xml/sax/xmlreader.py", line 123, in parse
    self.feed(buffer)
  File "/usr/lib/python2.5/xml/sax/expatreader.py", line 207, in feed
    self._parser.Parse(data, isFinal)
  File "/usr/lib/python2.5/xml/sax/expatreader.py", line 301, in start_element
    self._cont_handler.startElement(name, AttributesImpl(attrs))
  File "/usr/lib/python2.5/site-packages/sk1/app/plugins/Filters/svgloader.py", line 338, in startElement
    getattr(self, method)(attrs)
  File "/usr/lib/python2.5/site-packages/sk1/app/plugins/Filters/svgloader.py", line 935, in use
    if data[0] == 'object':
TypeError: 'NoneType' object is unsubscriptable
ubuntu@baltix:~$