$ git clone -n https://src.fedoraproject.org/rpms/rust-itertools.git /var/lib/mock/f38-build-side-42-init-devel-1393890-31050/root/chroot_tmpdir/scmroot/rust-itertools
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1393890-31050/root/chroot_tmpdir/scmroot/rust-itertools'...
$ git fetch origin f3019df8d7b9ca57df7ad75a55f77cdb9a7d16cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-itertools
 * [new ref]         f3019df8d7b9ca57df7ad75a55f77cdb9a7d16cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3019df Update to version 0.11.0; Fixes RHBZ#2216776