$ git clone -n https://src.fedoraproject.org/rpms/rust-pnet_datalink.git /var/lib/mock/f45-build-43930-809/root/chroot_tmpdir/scmroot/rust-pnet_datalink
Cloning into '/var/lib/mock/f45-build-43930-809/root/chroot_tmpdir/scmroot/rust-pnet_datalink'...
$ git fetch origin d0222760fbd09efd1c0637947a2b9f164de1d9f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pnet_datalink
 * [new ref]         d0222760fbd09efd1c0637947a2b9f164de1d9f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d022276 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild