  The previous analysis of the short-range $NN$ repulsion originating from the
Goldstone boson exchange hyperfine interaction between constituent quarks is
revisited. We study in which respects the repulsion depends on the radial form
of the spin-spin quark-quark force. We show that while the radial form affects
the structure of the 6Q wave function, the short-range repulsion in the $NN$
system persists in any case. We extend our analysis to other $YN$ and $YY$
(flavor octet-octet) systems and demonstrate that the flavor-spin hyperfine
interaction implies a short-range repulsion in these B=2 systems as well.
