Merge pull request #12466 from phil235/BugFixBoogalooH

Bugfixes: soulstone, reagent runtimes, etc

code/game/objects/effects/spiders.dm

@@ -219,6 +219,9 @@
 				if(!src)
 					return
 
+				listclearnulls(consenting_candidates) //some candidates might have left during sleep(50)
+
+
 				if(consenting_candidates.len)
 					var/client/C = null
 					C = pick(consenting_candidates)

code/game/objects/items/weapons/grenades/chem_grenade.dm

@@ -156,7 +156,7 @@
 		nadeassembly.on_found(finder)
 
 /obj/item/weapon/grenade/chem_grenade/prime()
-	if(stage != READY)
+	if(stage != READY || !reagents)
 		return
 
 	var/has_reagents