given automatically." Chitimachia Tribe of Louisiana I. Harry L. Laws Co., Inc., 690 F.2d 1157, 1163 (5'1' Cir. 1982), citing Addington I. Farmer's Elevator Mutual Insurance maC ., 650 F.2d 663, 666 (5/ Cir. 1981). The Fifth Circuit observed that the "[m]ere passage of time need not result in a denial of leave to amend,