Fix rare crash ccaused by forcing active an inactive group containing a trigger setup.

[Paliak]

Fixes #6862

Description of the problem being solved:

If a disabled group containing a triggered skill is forced active a crash can occur due to incorrect main socket group selection in CACHE mode. When a wrong socket group is considered main the player.mainSkill will not be in fullEnv.player.activeSkillList

PathOfBuilding/src/Modules/Calcs.lua

Lines 406 to 417 in 63d4f21

	function calcs.buildActiveSkill(env, mode, skill, limitedProcessingFlags)
	local fullEnv, _, _, _ = calcs.initEnv(env.build, mode, env.override)
	for _, activeSkill in ipairs(fullEnv.player.activeSkillList) do
	if cacheSkillUUID(activeSkill, fullEnv) == cacheSkillUUID(skill, env) then
	fullEnv.player.mainSkill = activeSkill
	fullEnv.player.mainSkill.skillData.limitedProcessing = limitedProcessingFlags and limitedProcessingFlags[cacheSkillUUID(activeSkill, fullEnv)]
	calcs.perform(fullEnv)
	return
	end
	end
	ConPrintf("[calcs.buildActiveSkill] Failed to process skill: " .. skill.activeEffect.grantedEffect.name)
	end

causing the assumption in the manaforged mana cost pre calculation to cause a nil de reference:

PathOfBuilding/src/Modules/CalcTriggers.lua

Lines 509 to 512 in 63d4f21

	if not GlobalCache.cachedData["CACHE"][triggeredUUID] then
	calcs.buildActiveSkill(env, "CACHE", actor.mainSkill, {[triggeredUUID] = true})
	end
	local triggeredManaCost = GlobalCache.cachedData["CACHE"][triggeredUUID].Env.player.output.ManaCost or 0

Steps taken to verify a working solution:

• Test build from issue
• Run tests from Add rudimentary trigger tests #6574