with just sum of abs, it was reverting the order for e.g.

	[2,3) [3,∞)  wrt  [-∞,1) [1,2)

where cost matrix was

	⎡∞ + 4  2⋅∞ + 2⎤
	⎢              ⎥
	⎣  2       ∞   ⎦

and 0-0 + 1-1 is the same as 0-1 + 1-0

with squares 2 in (2⋅∞)² becomes 4 and wins ∞²+∞².

This assert in T2/T1-T3/B0-B1-T-T/B2-B3 -> T2/T1-T/T-T-B2,3/B0-B1.