“When Fisk University officials agreed to hand over a Georgia O’Keeffe painting to a Santa Fe, N.M., museum for $7 million a few months ago, few in the art world understood why. Sure, the nearly 140-year-old historically black college has serious financial troubles–by the end of fiscal year 2005, it was $3.5 million in the hole.” But now the transaction has ended up in court and…