$ git clone -n https://src.fedoraproject.org/rpms/dxpc.git /var/lib/mock/f40-build-750559-115125/root/chroot_tmpdir/scmroot/dxpc
Cloning into '/var/lib/mock/f40-build-750559-115125/root/chroot_tmpdir/scmroot/dxpc'...
$ git fetch origin f4b54d4a5d00d59844359028aebf1ff811f6b8ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dxpc
 * [new ref]         f4b54d4a5d00d59844359028aebf1ff811f6b8ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4b54d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild