$ git clone -n https://src.fedoraproject.org/rpms/go-chromecast.git /var/lib/mock/f45-build-11654-433/root/chroot_tmpdir/scmroot/go-chromecast
Cloning into '/var/lib/mock/f45-build-11654-433/root/chroot_tmpdir/scmroot/go-chromecast'...
$ git fetch origin bab92f4ee56eb50891c27a30d0d3d4acd709b4e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/go-chromecast
 * [new ref]         bab92f4ee56eb50891c27a30d0d3d4acd709b4e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bab92f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild