$ git clone -n https://src.fedoraproject.org/rpms/golang-github-cockroachdb-errors.git /var/lib/mock/f39-build-2012716-45809/root/chroot_tmpdir/scmroot/golang-github-cockroachdb-errors
Cloning into '/var/lib/mock/f39-build-2012716-45809/root/chroot_tmpdir/scmroot/golang-github-cockroachdb-errors'...
$ git fetch origin af07417d68ec19ef2fa173009548cc510c9b3f4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-cockroachdb-errors
 * [new ref]         af07417d68ec19ef2fa173009548cc510c9b3f4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af07417 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild