$ git clone -n https://src.fedoraproject.org/rpms/golang-github-tonistiigi-archvariant.git /var/lib/mock/f39-build-1503646-34980/root/chroot_tmpdir/scmroot/golang-github-tonistiigi-archvariant
Cloning into '/var/lib/mock/f39-build-1503646-34980/root/chroot_tmpdir/scmroot/golang-github-tonistiigi-archvariant'...
$ git fetch origin c981d6a5cc4d3ce2d2c68e7f0b3bd261f7118f07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-tonistiigi-archvariant
 * [new ref]         c981d6a5cc4d3ce2d2c68e7f0b3bd261f7118f07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c981d6a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild