$ git clone -n https://src.fedoraproject.org/rpms/rust-litemap.git /var/lib/mock/f42-build-side-1-3588687-46949/root/chroot_tmpdir/scmroot/rust-litemap
Cloning into '/var/lib/mock/f42-build-side-1-3588687-46949/root/chroot_tmpdir/scmroot/rust-litemap'...
$ git fetch origin 1753b93e7c6f4682b90ca979a72b345cbf353597:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-litemap
 * [new ref]         1753b93e7c6f4682b90ca979a72b345cbf353597 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1753b93 Restore postcard dev-dependency