Fixed a potential slowdown & memory leak with cloning talents

game/engines/default/engine/Entity.lua

game/modules/tome/class/Actor.lua

game/modules/tome/data/quests/paradoxology.lua

game/modules/tome/data/talents/celestial/twilight.lua

game/modules/tome/data/talents/chronomancy/chronomancer.lua

game/modules/tome/data/talents/chronomancy/other.lua

game/modules/tome/data/talents/cunning/ambush.lua

game/modules/tome/data/talents/psionic/mentalism.lua

game/modules/tome/data/timed_effects/other.lua

game/modules/tome/data/zones/shadow-crypt/npcs.lua

game/modules/tome/dialogs/DownloadCharball.lua