Since the new SME Contribs repository is in place (as of smeserver-yum-1.2.0-41) and the latest package providing it to SME Servers automatically is pushed to the mirrors I moved my package to the new repository. This will also decommission my repository as there is a better more stable location to provide my contrib.
The latest version is smeserver-subversion-1.2-9 and provides a bug fix as well.
To install get SME Server shell access as root user on your SME Server and install this command:
yum install smeserver-subversion --enablerpo=smecontribs