$ git clone -n https://src.fedoraproject.org/rpms/rust-parsec-interface.git /var/lib/mock/f42-build-side-1-3588273-46944/root/chroot_tmpdir/scmroot/rust-parsec-interface
Cloning into '/var/lib/mock/f42-build-side-1-3588273-46944/root/chroot_tmpdir/scmroot/rust-parsec-interface'...
$ git fetch origin fe009f02df20b404162cb68f6be9c4b45dfb6814:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-parsec-interface
 * [new ref]         fe009f02df20b404162cb68f6be9c4b45dfb6814 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe009f0 PARSEC is no longer being actively developed