Inheritance of site deploy URL not done in child

I have my parent distribution site config filled out like so:

<url>scp://private-site/home/private/site/releases/${project.groupId}/${project.artifactId}/${project.version}/</url>

When the child tries to release:perform or site:deploy it tries to upload with the parent arifactId, groupId and version instead of the current project values. These should be interpolated like any other variables in the POM to prevent needless duplication in all children.