fix rest of #13334: stop Hasty Alliance using illegal path coordinates

changelog

@@ -17,6 +17,7 @@ CVS HEAD:
      * reduced the turn limit in The Drowned Plains
    * Heir to the Throne:
      * made campaign easier on "Easy" level
+     * fixed Hasty Alliance crash: avoid cavewall endpoints (part of #13334)
  * unit graphics and sound improvements:
    * new or modified images for Dwarvish Thunderer
    * new death animations for Dwarvish Thunderer, Elvish Archer
@@ -30,7 +31,7 @@ CVS HEAD:
  * restored dialog titles for multiplayer screens (#13049)
  * --nosound commandline option no longer initializes sound (part of #11669)
  * players can now control multiple sides in multiplayer
- * fixed crash: move_unit_fake with coordinates outside the map (part of #13334)
+ * fixed crash: move_unit_fake with illegal coordinates (part of #13334)
  * prevented user campaigns from making the game unstartable
 
 Version 0.9.2:

data/scenarios/Heir_To_The_Throne/Hasty_Alliance.cfg

@@ -237,8 +237,8 @@
 
 		[move_unit_fake]
 			type=Goblin Knight
-			x=8,8
-			y=21,20
+			x=7,8
+			y=20,20
 		[/move_unit_fake]
 
 		{HASTY_GOBLIN_KNIGHT 8 20}
@@ -254,7 +254,7 @@
 		[move_unit_fake]
 			type=Troll
 			x=5,5,6
-			y=13,14,15
+			y=14,15,15
 		[/move_unit_fake]
 
 		{HASTY_TROLL 6 15}