$ git clone -n https://src.fedoraproject.org/rpms/dnssec-tools.git /var/lib/mock/f41-build-816976-150570/root/chroot_tmpdir/scmroot/dnssec-tools
Cloning into '/var/lib/mock/f41-build-816976-150570/root/chroot_tmpdir/scmroot/dnssec-tools'...
$ git fetch origin 3d3384bf761b06b6393b661a78c09bc14aa2d6dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnssec-tools
 * [new ref]         3d3384bf761b06b6393b661a78c09bc14aa2d6dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d3384b Perl 5.40 rebuild