$ git clone -n https://src.fedoraproject.org/rpms/rust-failure.git /var/lib/mock/f40-build-2659959-66918/root/chroot_tmpdir/scmroot/rust-failure
Cloning into '/var/lib/mock/f40-build-2659959-66918/root/chroot_tmpdir/scmroot/rust-failure'...
$ git fetch origin fe1324faf0bf996db5b513606ea04e09231aa906:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-failure
 * [new ref]         fe1324faf0bf996db5b513606ea04e09231aa906 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe1324f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild