Learning combat training on the golem from an escort wont lower his (hidden) mastery

git-svn-id: http://svn.net-core.org/repos/t-engine4@4384 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/chats/escort-quest.lua

@@ -255,7 +255,7 @@ local function generate_rewards()
 			local cat = tt_def.type:gsub("/.*", "")
 			local doit = function(npc, player)
 				player:learnTalentType(tt, false)
-				player:setTalentTypeMastery(tt, mastery)
+				player:setTalentTypeMastery(tt, math.max(mastery, player:getTalentTypeMastery(tt)))
 				player:hasQuest(npc.quest_id).reward_message = ("gained talent category %s (at mastery %0.2f)"):format(cat:capitalize().." / "..tt_def.name:capitalize(), mastery)
 			end
 			answers[#answers+1] = {("[Allow training of talent category %s (at mastery %0.2f)]"):format(cat:capitalize().." / "..tt_def.name:capitalize(), mastery),