$ git clone -n https://src.fedoraproject.org/rpms/rust-rusqlite.git /var/lib/mock/f42-build-side-1-3585392-46904/root/chroot_tmpdir/scmroot/rust-rusqlite
Cloning into '/var/lib/mock/f42-build-side-1-3585392-46904/root/chroot_tmpdir/scmroot/rust-rusqlite'...
$ git fetch origin ecc7013dad798196f7ddb7e38a55cde8eb8733c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rusqlite
 * [new ref]         ecc7013dad798196f7ddb7e38a55cde8eb8733c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecc7013 Allow hashlink 0.10