$ git clone -n https://src.fedoraproject.org/rpms/etcd.git /var/lib/mock/f41-build-850790-165638/root/chroot_tmpdir/scmroot/etcd
Cloning into '/var/lib/mock/f41-build-850790-165638/root/chroot_tmpdir/scmroot/etcd'...
$ git fetch origin deb5f9023466323f7b8deb1cde031f652940ee33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/etcd
 * [new ref]         deb5f9023466323f7b8deb1cde031f652940ee33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at deb5f90 Update to 3.5.13 - Closes rhbz#2225797 rhbz#2171486 rhbz#2170782 rhbz#2236640 rhbz#2243321 rhbz#2248266 rhbz#2251230