$ git clone -n https://src.fedoraproject.org/rpms/nspr.git /var/lib/mock/f32-build-117983-35301/root/thebuilddir/tmp/scmroot/nspr
Cloning into '/var/lib/mock/f32-build-117983-35301/root/thebuilddir/tmp/scmroot/nspr'...
$ git reset --hard bbf7e37d68fe92991dc998337f97a17f4161da1f
HEAD is now at bbf7e37 Update to NSPR 4.23