$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mmcloughlin-avo.git /var/lib/mock/f45-build-12238-440/root/chroot_tmpdir/scmroot/golang-github-mmcloughlin-avo
Cloning into '/var/lib/mock/f45-build-12238-440/root/chroot_tmpdir/scmroot/golang-github-mmcloughlin-avo'...
$ git fetch origin dc67475cb9a7cb7f976e2506aff9cabf818dc09d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mmcloughlin-avo
 * [new ref]         dc67475cb9a7cb7f976e2506aff9cabf818dc09d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc67475 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild