$ git clone -n https://src.fedoraproject.org/rpms/rust-parsec-interface.git /var/lib/mock/f40-build-2326390-58833/root/chroot_tmpdir/scmroot/rust-parsec-interface
Cloning into '/var/lib/mock/f40-build-2326390-58833/root/chroot_tmpdir/scmroot/rust-parsec-interface'...
$ git fetch origin 8ca16ecb4a5fc096579b6c979f86e5d9e5abd5fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-parsec-interface
 * [new ref]         8ca16ecb4a5fc096579b6c979f86e5d9e5abd5fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ca16ec Update to 0.29.1