$ git clone -n https://src.fedoraproject.org/rpms/pychromecast.git /var/lib/mock/f39-build-2229917-53191/root/chroot_tmpdir/scmroot/pychromecast
Cloning into '/var/lib/mock/f39-build-2229917-53191/root/chroot_tmpdir/scmroot/pychromecast'...
$ git fetch origin 181e191a782fae06775458f22569dd761f90b853:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pychromecast
 * [new ref]         181e191a782fae06775458f22569dd761f90b853 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 181e191 13.0.8