Some malf AI exploit fixes

code/modules/atmospherics/machinery/pipes/pipe.dm

@@ -13,6 +13,8 @@
 	buckle_requires_restraints = TRUE
 	buckle_lying = -1
 
+	flags_2 = NO_MALF_EFFECT_2
+
 /obj/machinery/atmospherics/pipe/New()
 	..()
 	//so pipes under walls are hidden

code/modules/power/apc.dm

@@ -1014,7 +1014,7 @@
 	if(constructed)
 		to_chat(malf, "<span class='warning'>This APC was only recently constructed, and is not fully linked to station systems. Hacking it would be pointless.</span>")
 		return
-	to_chat(malf, "Beginning override of APC systems. This takes some time, and you cannot perform other actions during the process.")
+	to_chat(malf, "Beginning override of APC systems. This takes some time, and you can only hack one APC at a time.")
 	malf.malfhack = src
 	malf.malfhacking = addtimer(CALLBACK(malf, /mob/living/silicon/ai/.proc/malfhacked, src), 600, TIMER_STOPPABLE)
 	var/obj/screen/alert/hackingapc/A

code/modules/power/supermatter/supermatter.dm

@@ -85,7 +85,7 @@
 	icon_state = "darkmatter"
 	density = TRUE
 	anchored = TRUE
-	flags_2 = RAD_PROTECT_CONTENTS_2 | RAD_NO_CONTAMINATE_2 | IMMUNE_TO_SHUTTLECRUSH_2
+	flags_2 = RAD_PROTECT_CONTENTS_2 | RAD_NO_CONTAMINATE_2 | IMMUNE_TO_SHUTTLECRUSH_2 | NO_MALF_EFFECT_2
 	light_range = 4
 	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF | FREEZE_PROOF
 	base_icon_state = "darkmatter"