$ git clone -n https://src.fedoraproject.org/rpms/golang-github-pion-randutil.git /var/lib/mock/f45-build-12359-441/root/chroot_tmpdir/scmroot/golang-github-pion-randutil
Cloning into '/var/lib/mock/f45-build-12359-441/root/chroot_tmpdir/scmroot/golang-github-pion-randutil'...
$ git fetch origin 01b44bf8cc55d22901630c067c9800f36614862e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-pion-randutil
 * [new ref]         01b44bf8cc55d22901630c067c9800f36614862e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01b44bf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild