Comment 1 for bug 1929142

As a workaround, I had to perform the following:

* I verified that everything aside from the .snapshot directory had the correct owner and permissions, as the post-install script would have otherwise set.

* I edited /var/lib/dpkg/info/glance-common.postinst, commenting out those 2 lines.

* I ran "sudo dpkg --configure glance-common" to allow the modified post-install hook to run, and for the package to complete installation. This then allowed for packages that depended on glance-common to be upgraded afterwards.