$ git clone -n https://src.fedoraproject.org/rpms/python-pysword.git /var/lib/mock/f41-build-side-1-2768259-32092/root/chroot_tmpdir/scmroot/python-pysword
Cloning into '/var/lib/mock/f41-build-side-1-2768259-32092/root/chroot_tmpdir/scmroot/python-pysword'...
$ git fetch origin a37ec2c465cdbef871d6473784bb790976b61583:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pysword
 * [new ref]         a37ec2c465cdbef871d6473784bb790976b61583 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a37ec2c Updates to spec file due to macro change