$ git clone -n https://src.fedoraproject.org/rpms/rust-itertools0.10.git /var/lib/mock/f45-build-42720-796/root/chroot_tmpdir/scmroot/rust-itertools0.10
Cloning into '/var/lib/mock/f45-build-42720-796/root/chroot_tmpdir/scmroot/rust-itertools0.10'...
$ git fetch origin 1bd54ee57e2f264bc5d101ce490835fe36678ad9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-itertools0.10
 * [new ref]         1bd54ee57e2f264bc5d101ce490835fe36678ad9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1bd54ee Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild