$ git clone -n https://src.fedoraproject.org/rpms/rust-sha-1.git /var/lib/mock/f40-build-2063720-49167/root/chroot_tmpdir/scmroot/rust-sha-1
Cloning into '/var/lib/mock/f40-build-2063720-49167/root/chroot_tmpdir/scmroot/rust-sha-1'...
$ git fetch origin 814224eb8b4270284389515129a645d8f4383d29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sha-1
 * [new ref]         814224eb8b4270284389515129a645d8f4383d29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 814224e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild