$ git clone -n https://src.fedoraproject.org/rpms/golang-github-client9-plaintext.git /var/lib/mock/f45-build-20097-565/root/chroot_tmpdir/scmroot/golang-github-client9-plaintext
Cloning into '/var/lib/mock/f45-build-20097-565/root/chroot_tmpdir/scmroot/golang-github-client9-plaintext'...
$ git fetch origin db0bc37ab8bda3cc93cab31e24076828b5647862:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-client9-plaintext
 * [new ref]         db0bc37ab8bda3cc93cab31e24076828b5647862 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db0bc37 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild