Update c72705654.lua

Added RegisterMergedDelayedEvent_ToSingleCard method for some cards in the DP29 branch to fix the large number of unknown options caused by the timing of these cards being induced by multiple cards at the same time.
Should be tested in conjunction with Fluorohydride#2793

c72705654.lua

@@ -26,10 +26,11 @@ function s.initial_effect(c)
 	e2:SetOperation(s.spop2)
 	c:RegisterEffect(e2)
 	--
+	local custom_code=aux.RegisterMergedDelayedEvent_ToSingleCard(c,id,EVENT_SPSUMMON_SUCCESS)
 	local e3=Effect.CreateEffect(c)
 	e3:SetDescription(aux.Stringid(id,2))
 	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
-	e3:SetCode(EVENT_CUSTOM+id)
+	e3:SetCode(custom_code)
 	e3:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
 	e3:SetRange(LOCATION_GRAVE+LOCATION_HAND)
 	e3:SetCountLimit(1,id+o*2)
@@ -38,7 +39,6 @@ function s.initial_effect(c)
 	e3:SetTarget(s.mattg)
 	e3:SetOperation(s.matop)
 	c:RegisterEffect(e3)
-	aux.RegisterMergedDelayedEvent(c,id,EVENT_SPSUMMON_SUCCESS)
 end
 function s.spcon(e,tp,eg,ep,ev,re,r,rp)
 	return not e:GetHandler():IsReason(REASON_DRAW)