$ git clone -n https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager.git /var/lib/mock/f33-build-140303-42477/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager
Cloning into '/var/lib/mock/f33-build-140303-42477/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager'...
$ git reset --hard 24dc1fd0889e58d0cc3b5f800b55f3814e9117be
HEAD is now at 24dc1fd Update to 0.20.0