$ git clone -n https://src.fedoraproject.org/rpms/rust-hashbrown0.13.git /var/lib/mock/f40-build-1184807-22032/root/chroot_tmpdir/scmroot/rust-hashbrown0.13
Cloning into '/var/lib/mock/f40-build-1184807-22032/root/chroot_tmpdir/scmroot/rust-hashbrown0.13'...
$ git fetch origin bf7e7fbb06bb1e6438c887fa271ee5d5ca24fcbe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-hashbrown0.13
 * [new ref]         bf7e7fbb06bb1e6438c887fa271ee5d5ca24fcbe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf7e7fb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild