When I first tried to submit this bug using eclipse-mylyn-fedora-integration. I got the error in the subject. It works when I change the severity but that was the default one. PS: I am testing eclipse-mylyn-fedora-integration and it totally worked :)
eclipse-mylyn-3.7.0-5.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/eclipse-mylyn-3.7.0-5.fc17
eclipse-mylyn-3.7.0-5.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.