IE: Unable to export business process to PDF

Description of problem:
When I try to export a business process to PDF ('Share Process PDF' or 'Download Process PDF'), I get exception in server.log and no alert in GUI.

If I save a pdf then IE shows the "xxx.pdf couldn't be downloaded" alert.

The exception says:
java.io.IOException: Element type "path" must be followed by either attribute specifications, ">" or "/>".

Note that if I use Firefox or Chrome everything is fine.

Version-Release number of selected component (if applicable):
6.0.2 GA BPMS, BRMS

How reproducible:
Use IE instead of Firefox or Chrome.

Steps to Reproduce:
1. Create a new process (for example: Start -> End)
2. Download process PDF

Actual results:
Server.log contains the exception. It is attached.
GUI does not perform any action which says something about a problem.

In case that I choose "Save file" then I have to type own name of PDF file because the predefined name of the file is similar with URL and IE shows this alert: xxx.pdf couldn't be downloaded

Expected results:
New PDF file in git repository (section 'Others').

Additional info: