$ git clone -n https://src.fedoraproject.org/rpms/libnfnetlink.git /var/lib/mock/f40-build-2237897-53553/root/chroot_tmpdir/scmroot/libnfnetlink
Cloning into '/var/lib/mock/f40-build-2237897-53553/root/chroot_tmpdir/scmroot/libnfnetlink'...
$ git fetch origin 62d9eaa36bed7e8240dcc22a4181337310518681:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libnfnetlink
 * [new ref]         62d9eaa36bed7e8240dcc22a4181337310518681 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62d9eaa Convert license to SPDX format