Merge remote-tracking branch 'upstream/master' into botany-rework

code/modules/events/alien_infestation.dm

@@ -29,6 +29,8 @@
 				respawnable_list -= C.client
 				var/mob/living/carbon/alien/larva/new_xeno = new(vent.loc)
 				new_xeno.key = C.key
+				if(ticker && ticker.mode)
+					ticker.mode.xenos += new_xeno.mind
 
 				spawncount--
 				successSpawn = 1

code/modules/events/immovable_rod.dm

@@ -34,8 +34,13 @@ In my current plan for it, 'solid' will be defined as anything with density == 1
 	loc = start
 	z_original = z
 	destination = end
+	poi_list |= src
 	if(end && end.z==z_original)
 		walk_towards(src, destination, 1)
+	
+/obj/effect/immovablerod/Destroy()
+	poi_list.Remove(src)
+	return ..()
 
 /obj/effect/immovablerod/Move()
 	if(z != z_original || loc == destination)