Latest upstream release: 2.3
Current version/release in Fedora Rawhide: 2.2.1-8.fc21
Please consult the package updates policy before you issue an update to a stable branch: https://fedoraproject.org/wiki/Updates_Policy
More information about the service that created this bug can be found at:
Fixed in maven-source-plugin-2.3-1
I believe that this feature is included in maven-source-plugin-2.3-1,
which is available in Fedora Rawhide, so I am closing this bug now.
The build which includes the feature can be found at Koji: