crashtesting: assert on export of tdf99571-1.docx to docx

Change-Id: I2c8d82ac21451a2d2cc748dc28ac210c8e5ddf5f
diff --git a/filter/source/msfilter/eschesdo.cxx b/filter/source/msfilter/eschesdo.cxx
index 50df810..7aa8083 100644
--- a/filter/source/msfilter/eschesdo.cxx
+++ b/filter/source/msfilter/eschesdo.cxx
@@ -1216,8 +1216,17 @@ sal_uInt32 ImplEESdrObject::ImplGetText()
{
    Reference< XText > xXText( mXShape, UNO_QUERY );
    mnTextSize = 0;
    if( xXText.is() )
        mnTextSize = xXText->getString().getLength();
    if (xXText.is())
    {
        try
        {
            mnTextSize = xXText->getString().getLength();
        }
        catch (const uno::RuntimeException& e)
        {
            SAL_WARN("filter.ms", "ImplGetText exception: " << e.Message);
        }
    }
    return mnTextSize;
}