Fix map spawn

Fix map failing to spawn in some cases.

scripts/portal/s4common1_exit.js

@@ -0,0 +1,9 @@
+//Author: Ronan
+
+function enter(pi) {  
+	if(pi.hasItem(4031495)) pi.warp(921100301);
+        else pi.warp(211040100);
+        
+        pi.getWarpMap(921100300).clearMapObjects();
+	return true;
+}