$ git clone -n https://src.fedoraproject.org/rpms/golang-github-hydrogen18-memlistener.git /var/lib/mock/f45-build-12065-437/root/chroot_tmpdir/scmroot/golang-github-hydrogen18-memlistener
Cloning into '/var/lib/mock/f45-build-12065-437/root/chroot_tmpdir/scmroot/golang-github-hydrogen18-memlistener'...
$ git fetch origin 6b324f3e2414504437068a843e4f9379432a56bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-hydrogen18-memlistener
 * [new ref]         6b324f3e2414504437068a843e4f9379432a56bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b324f3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild