Fixed Hexen: Successful execution of a deferred ACS script event woul…

…d result in erroneously free'ing the rest of the store, subsequently leading to access violations later on (see here http://sourceforge.net/tracker/index.php?func=detail&aid=3175797&group_id=74815&atid=542099# and http://sourceforge.net/tracker/index.php?func=detail&aid=3163341&group_id=74815&atid=542099# and http://sourceforge.net/tracker/index.php?func=detail&aid=3037656&group_id=74815&atid=542099# and http://sourceforge.net/tracker/index.php?func=detail&aid=3022371&group_id=74815&atid=542099).

doomsday/plugins/jhexen/src/p_acs.c

@@ -354,13 +354,17 @@ void P_CheckACSStore(uint map)
         memmove(&ACSStore[i], &ACSStore[i+1], sizeof(acsstore_t) * (ACSStoreSize-i));
     }
 
-    if(ACSStoreSize != origSize)
+    if(ACSStoreSize == origSize)
+        return;
+
+    if(ACSStoreSize)
     {
-        if(ACSStoreSize)
-            ACSStore = Z_Realloc(ACSStore, sizeof(acsstore_t) * ACSStoreSize, PU_STATIC);
-        else
-            Z_Free(ACSStore); ACSStore = NULL;
+        ACSStore = Z_Realloc(ACSStore, sizeof(acsstore_t) * ACSStoreSize, PU_GAMESTATIC);
+        return;
     }
+
+    Z_Free(ACSStore);
+    ACSStore = 0;
 }
 
 /**