$ git clone -n https://src.fedoraproject.org/rpms/pandoc.git /var/lib/mock/f41-build-840830-160968/root/chroot_tmpdir/scmroot/pandoc
Cloning into '/var/lib/mock/f41-build-840830-160968/root/chroot_tmpdir/scmroot/pandoc'...
$ git fetch origin 4b264ccd48b57153ee8840fd6c2581b8bf790f29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pandoc
 * [new ref]         4b264ccd48b57153ee8840fd6c2581b8bf790f29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b264cc move pdf meta subpackage to pandoc-cli