$ git clone -n https://src.fedoraproject.org/rpms/rest.git /var/lib/mock/f40-build-796964-140991/root/chroot_tmpdir/scmroot/rest
Cloning into '/var/lib/mock/f40-build-796964-140991/root/chroot_tmpdir/scmroot/rest'...
$ git fetch origin 1ecf2e9c79b539188499f4a81882e0a30fd32f8c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rest
 * [new ref]         1ecf2e9c79b539188499f4a81882e0a30fd32f8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ecf2e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild