$ git clone -n https://src.fedoraproject.org/rpms/golang-github-tonistiigi-archvariant.git /var/lib/mock/f40-build-782492-132263/root/chroot_tmpdir/scmroot/golang-github-tonistiigi-archvariant
Cloning into '/var/lib/mock/f40-build-782492-132263/root/chroot_tmpdir/scmroot/golang-github-tonistiigi-archvariant'...
$ git fetch origin 6ea2b726cb9402141864b5e931a6dfb546c2efa1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-tonistiigi-archvariant
 * [new ref]         6ea2b726cb9402141864b5e931a6dfb546c2efa1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ea2b72 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild