$ git clone -n https://src.fedoraproject.org/rpms/kf6-kdav.git /var/lib/mock/f40-build-788579-135222/root/chroot_tmpdir/scmroot/kf6-kdav
Cloning into '/var/lib/mock/f40-build-788579-135222/root/chroot_tmpdir/scmroot/kf6-kdav'...
$ git fetch origin 2416bb478d15ce96158ae8ec38e916668bba5f17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kdav
 * [new ref]         2416bb478d15ce96158ae8ec38e916668bba5f17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2416bb4 6.0.0