$ git clone -n https://src.fedoraproject.org/rpms/rust-pnet_packet.git /var/lib/mock/f45-build-43926-809/root/chroot_tmpdir/scmroot/rust-pnet_packet
Cloning into '/var/lib/mock/f45-build-43926-809/root/chroot_tmpdir/scmroot/rust-pnet_packet'...
$ git fetch origin 6f7e3a3616bdbc727d10cfd3b99cd69800a7097d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pnet_packet
 * [new ref]         6f7e3a3616bdbc727d10cfd3b99cd69800a7097d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f7e3a3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild