$ git clone -n https://src.fedoraproject.org/rpms/kf6-threadweaver.git /var/lib/mock/f42-build-side-1-3537125-46559/root/chroot_tmpdir/scmroot/kf6-threadweaver
Cloning into '/var/lib/mock/f42-build-side-1-3537125-46559/root/chroot_tmpdir/scmroot/kf6-threadweaver'...
$ git fetch origin a265987d21d7bec8c30e42c3ef807512bb1f2e4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-threadweaver
 * [new ref]         a265987d21d7bec8c30e42c3ef807512bb1f2e4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a265987 6.14.0