$ git clone -n https://src.fedoraproject.org/rpms/rust-pnet_base.git /var/lib/mock/f41-build-700924-12894/root/chroot_tmpdir/scmroot/rust-pnet_base
Cloning into '/var/lib/mock/f41-build-700924-12894/root/chroot_tmpdir/scmroot/rust-pnet_base'...
$ git fetch origin b0692f5a9848019738c84644a91863a1d4cdf248:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pnet_base
 * [new ref]         b0692f5a9848019738c84644a91863a1d4cdf248 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0692f5 Update to 0.34.0 (close RHBZ#1960835)