$ git clone -n https://src.fedoraproject.org/rpms/pychromecast.git /var/lib/mock/f41-build-1309735-23503/root/chroot_tmpdir/scmroot/pychromecast
Cloning into '/var/lib/mock/f41-build-1309735-23503/root/chroot_tmpdir/scmroot/pychromecast'...
$ git fetch origin c44492a65aac7be02e3e39bc3f33a3d2a5065fce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pychromecast
 * [new ref]         c44492a65aac7be02e3e39bc3f33a3d2a5065fce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c44492a revert to 13.1, newer revs need newer protobuf, update to newer python build macros, rebuild