$ git clone -n https://src.fedoraproject.org/rpms/libfyaml.git /var/lib/mock/f40-build-2604047-63367/root/chroot_tmpdir/scmroot/libfyaml
Cloning into '/var/lib/mock/f40-build-2604047-63367/root/chroot_tmpdir/scmroot/libfyaml'...
$ git fetch origin 2c84588dcdc5534f7f0981d6023758b854b09dab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libfyaml
 * [new ref]         2c84588dcdc5534f7f0981d6023758b854b09dab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c84588 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild