Fixed the scout that's supposed to get recalled...

...for the cutscene getting lost entirely instead.

data/campaigns/Son_Of_The_Black_Eye/scenarios/04_The_Siege_Of_Barag_Gor.cfg

@@ -214,10 +214,18 @@
             role=Scout
         [/role]
 
-        [if]
-            [have_unit]
+        [store_unit]
+            [filter]
                 role=Scout
-            [/have_unit]
+            [/filter]
+            variable=scout
+        [/store_unit]
+
+        [if]
+            [variable]
+                name=scout.length
+                greater_than=0
+            [/variable]
 
             [then]
                 [recall]
@@ -230,17 +238,11 @@
                 {GENERIC_UNIT 1 "Wolf Rider" 36 20}
                 [+unit]
                     role=Scout
+                    to_variable=scout
                 [/unit]
             [/else]
         [/if]
 
-        [store_unit]
-            [filter]
-                role=Scout
-            [/filter]
-            variable=scout
-        [/store_unit]
-
         [message]
             speaker=narrator
             message= _ "When the party finally reached Barag Gór, they were met with a most startling sight."