$ git clone -n https://src.fedoraproject.org/rpms/rust-parking_lot.git /var/lib/mock/f40-build-2653182-66900/root/chroot_tmpdir/scmroot/rust-parking_lot
Cloning into '/var/lib/mock/f40-build-2653182-66900/root/chroot_tmpdir/scmroot/rust-parking_lot'...
$ git fetch origin a617b90311f5b7018b0e0ef64144f78615f58d7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-parking_lot
 * [new ref]         a617b90311f5b7018b0e0ef64144f78615f58d7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a617b90 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild