$ git clone -n https://src.fedoraproject.org/rpms/golang-github-kjk-lzmadec.git /var/lib/mock/f45-build-12146-439/root/chroot_tmpdir/scmroot/golang-github-kjk-lzmadec
Cloning into '/var/lib/mock/f45-build-12146-439/root/chroot_tmpdir/scmroot/golang-github-kjk-lzmadec'...
$ git fetch origin 2632fdf4277d718bf28072b664a36324346bb677:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-kjk-lzmadec
 * [new ref]         2632fdf4277d718bf28072b664a36324346bb677 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2632fdf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild