$ git clone -n https://src.fedoraproject.org/rpms/golang-github-leveldb.git /var/lib/mock/f45-build-20161-568/root/chroot_tmpdir/scmroot/golang-github-leveldb
Cloning into '/var/lib/mock/f45-build-20161-568/root/chroot_tmpdir/scmroot/golang-github-leveldb'...
$ git fetch origin ba3391e2916340cb7a4095642d6fb10db2780f6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-leveldb
 * [new ref]         ba3391e2916340cb7a4095642d6fb10db2780f6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba3391e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild