Petition by plaintiffs for discretionary review pursuant to G.S. 7A-31 allowed 7 September 1988; review limited to the issue of the propriety of dismissal of plaintiffs’ appeal. Petition by defendant (U.S. Fire Ins. Co.) for discretionary review pursuant to G.S. 7A-31 allowed 7 September 1988; review limited to the issue of propriety of dismissal of defendant’s appeal.