Crash on chart test in draw document

[Kohei Yoshida]

Hi there,

With this commit

http://cgit.freedesktop.org/libreoffice/core/commit/?id=81d2c208a4e6f9df87e2ee70c6e6da146742178a

on the master branch, I tried to add a test case involving a drawing
document with chart, but I've met with weird & random crashes and I was
wondering if I could get some help with this.

It's currently disabled, but you can re-enable it by uncommenting the
CPPUNIT_TEST line.

TIA,

Kohei