Thanks for looking into this. In earlier versions, the directory was owned by this package. The change is due to the way bug [#920259] is solved.
[#820259] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=820259 The idea is that the package creates files (symlinks, actually, but that is beside the point) in a directory that can be configured by the administrator through debconf. This configuration can be done at any time, before or after the package is installed. The default is /etc/grid-security/certificates, a long established convention for grid middleware; typically other files are found in /etc/grid-security as well. The package installation scripts try to be clever about cleaning up. They will remove the last directory if it is empty after deinstallation, but it would be presumptuous to clean out the entire directory hierarchy above; the location set in debconf could be some deep path under control of the sysadmin. There is actually a solution of this, which requires the installation scripts to record when directories are created, and to remove them afterward if they were created and are currently empty.
