$ git clone -n https://src.fedoraproject.org/rpms/golang-github-hashicorp-multierror.git /var/lib/mock/f45-build-12022-437/root/chroot_tmpdir/scmroot/golang-github-hashicorp-multierror
Cloning into '/var/lib/mock/f45-build-12022-437/root/chroot_tmpdir/scmroot/golang-github-hashicorp-multierror'...
$ git fetch origin bd07769e93f8ee541a70188d48f8f8fdf73a2910:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-hashicorp-multierror
 * [new ref]         bd07769e93f8ee541a70188d48f8f8fdf73a2910 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd07769 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild