backend: Dedup some code for temporary auth subjects
See https://bugs.freedesktop.org/show_bug.cgi?id=23867
which turned up from git annotate
here.
This code was copied, and we may want to change it in the future. Deduplicate it.
See https://bugs.freedesktop.org/show_bug.cgi?id=23867
which turned up from git annotate
here.
This code was copied, and we may want to change it in the future. Deduplicate it.