$ git clone -n https://src.fedoraproject.org/rpms/kweather.git /var/lib/mock/f39-build-1571081-37777/root/chroot_tmpdir/scmroot/kweather
Cloning into '/var/lib/mock/f39-build-1571081-37777/root/chroot_tmpdir/scmroot/kweather'...
$ git fetch origin 534dd452d2b23113c7152777500a8bd777a41ddf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kweather
 * [new ref]         534dd452d2b23113c7152777500a8bd777a41ddf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 534dd45 23.08.2