$ git clone -n https://src.fedoraproject.org/rpms/rust-ipnetwork0.17.git /var/lib/mock/f45-build-42634-795/root/chroot_tmpdir/scmroot/rust-ipnetwork0.17
Cloning into '/var/lib/mock/f45-build-42634-795/root/chroot_tmpdir/scmroot/rust-ipnetwork0.17'...
$ git fetch origin 64953f02c4361e09b199799ede7d3bbe66709671:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ipnetwork0.17
 * [new ref]         64953f02c4361e09b199799ede7d3bbe66709671 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64953f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild