Merge pull request #10953 from Ghommie/Ghommie-cit564

The awesome adventures of the missing spurdo line replacement file.

code/game/turfs/turf.dm

@@ -552,6 +552,8 @@
 	//if the vomit combined, apply toxicity and reagents to the old vomit
 	if (QDELETED(V))
 		V = locate() in src
+	if(!V) //the decal was spawned on a wall or groundless turf and promptly qdeleted.
+		return
 	// Make toxins and blazaam vomit look different
 	if(toxvomit == VOMIT_PURPLE)
 		V.icon_state = "vomitpurp_[pick(1,4)]"