/var/lib/nova/volumes is owned by root after Folsom upgrade

In Folsom, Nova begins to store target config files in a directory @ /var/lib/nova/volumes. This directory needs to be created by packaging and owned by nova:nova. This seems to be the case for new installations, however, during upgrades the directory is created but ends up owned as root. This causes nova-volume to error on any action that requires write access to the directory.

After upgrading from nova-volume 2012.1.3+stable-20120827-4d2a4afe-0ubuntu1

ubuntu@server-652:~$ ls /var/lib/nova/ -l
total 192
drwxr-xr-x 2 nova nova 4096 Aug 28 23:39 buckets
drwxr-xr-x 6 nova nova 4096 Oct 10 23:58 CA
drwxr-xr-x 2 nova nova 4096 Aug 28 23:39 images
drwxr-xr-x 2 nova nova 4096 Aug 28 23:39 instances
drwxr-xr-x 2 nova nova 4096 Aug 28 23:39 keys
drwxr-xr-x 2 nova nova 4096 Aug 28 23:39 networks
-rw-r----- 1 nova nova 159744 Oct 11 00:02 nova.sqlite
drwxr-xr-x 2 nova nova 4096 Aug 28 23:39 tmp
drwxr-xr-x 2 root root 4096 Oct 3 20:27 volumes
ubuntu@server-652:~$