$ git clone -n https://src.fedoraproject.org/rpms/basez.git /var/lib/mock/f40-build-750688-115165/root/chroot_tmpdir/scmroot/basez
Cloning into '/var/lib/mock/f40-build-750688-115165/root/chroot_tmpdir/scmroot/basez'...
$ git fetch origin 03e8bfc2783360248c372c6d529d4cce3f1115f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/basez
 * [new ref]         03e8bfc2783360248c372c6d529d4cce3f1115f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03e8bfc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild