$ git clone -n https://src.fedoraproject.org/rpms/rust-pnet_macros.git /var/lib/mock/f45-build-43933-809/root/chroot_tmpdir/scmroot/rust-pnet_macros
Cloning into '/var/lib/mock/f45-build-43933-809/root/chroot_tmpdir/scmroot/rust-pnet_macros'...
$ git fetch origin 707c3fbf32a25be7ba128985ae31408980a8ce7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pnet_macros
 * [new ref]         707c3fbf32a25be7ba128985ae31408980a8ce7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 707c3fb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild