$ git clone -n https://src.fedoraproject.org/rpms/gupnp.git /var/lib/mock/f40-build-2066917-49285/root/chroot_tmpdir/scmroot/gupnp
Cloning into '/var/lib/mock/f40-build-2066917-49285/root/chroot_tmpdir/scmroot/gupnp'...
$ git fetch origin 15664f9fe3544c338b59683e1d5cfafe6257f9ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gupnp
 * [new ref]         15664f9fe3544c338b59683e1d5cfafe6257f9ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15664f9 Fix building against libxml2 2.12.0 or above