$ git clone -n https://src.fedoraproject.org/rpms/golang-github-martini-contrib-auth.git /var/lib/mock/f41-build-side-1-2656956-28465/root/chroot_tmpdir/scmroot/golang-github-martini-contrib-auth
Cloning into '/var/lib/mock/f41-build-side-1-2656956-28465/root/chroot_tmpdir/scmroot/golang-github-martini-contrib-auth'...
$ git fetch origin 3f80373d41e612508e59c19752e919cde97cc97c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-martini-contrib-auth
 * [new ref]         3f80373d41e612508e59c19752e919cde97cc97c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f80373 Retire for https://pagure.io/GoSIG/go-sig/issue/58