$ git clone -n https://src.fedoraproject.org/rpms/rust-pnet_sys.git /var/lib/mock/f42-build-side-1-3537095-46559/root/chroot_tmpdir/scmroot/rust-pnet_sys
Cloning into '/var/lib/mock/f42-build-side-1-3537095-46559/root/chroot_tmpdir/scmroot/rust-pnet_sys'...
$ git fetch origin 404bb35446275ee3b25582604d293ad3555ea452:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pnet_sys
 * [new ref]         404bb35446275ee3b25582604d293ad3555ea452 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 404bb35 Update to version 0.35.0; Fixes RHBZ#2284022