But the court has delayed handing down its verdict, and family members said they did not expect a decision until after the Shanghai meeting closes.
The court has simply delayed enforcement of the ban for about a week until the next hearing.
Mexican courts delay Convention cases and often improperly treat them as custody decisions.
The court delayed a decision, however, on whether the state may cap aid to the districts at the current fiscal year's levels.
A trial before the courts would delay their business, and that meant losing money.
A court has delayed the cut until May 2011 because there was doubt over the legality of cancelling the city's commitment.
The appellate court delayed a final ruling in the matter until February 1, 1973.
Because Texas did not have a law school for blacks, the lower court delayed the case until Texas could create one.
But the courts delayed action, and then the monarchy announced the couple's engagement.
The court accepted new evidence against the party, but delayed a decision for what could be several months.