$ git clone -n https://src.fedoraproject.org/rpms/rust-itertools0.13.git /var/lib/mock/f45-build-42759-796/root/chroot_tmpdir/scmroot/rust-itertools0.13
Cloning into '/var/lib/mock/f45-build-42759-796/root/chroot_tmpdir/scmroot/rust-itertools0.13'...
$ git fetch origin 652973832ca3ac3a7111b7460aa91ba317438990:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-itertools0.13
 * [new ref]         652973832ca3ac3a7111b7460aa91ba317438990 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6529738 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild