Description of problem: Currently Fedora 22 has pre-release of Sisu (0.3.0.M1). Sisu should be updated to 0.3.0 final release.
Fixed in sisu-0.3.0-1
sisu-0.3.0-1.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/sisu-0.3.0-1.fc22
I believe that this feature is included in sisu-0.3.0-1, which is available in Fedora 22, so I am closing this bug now. The build which includes the feature can be found at Koji: http://koji.fedoraproject.org/koji/buildinfo?buildID=614991
sisu-0.3.0-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.