fixed bug #15950, which was WML issue:

units being copied from recall list without removing them from recall
list - that leads to those units being replaced from recall list upon
game load, as they have the same ID

changelog

@@ -5,6 +5,9 @@ Version 1.9.3+svn:
    * Delfadors Memoirs:
      * Fixed bug #17273: Made difficulty selection conform to the style of all
        other mainline campaigns
+   * Eastern Invasion:
+     * Fixed bug #15950: Made 11_Captured remove units from recall list,
+       preventing units being 'healed' upon load.
  * Formula language:
    * Added substring function.
    * Added length function, to determine the length of a string.

data/campaigns/Eastern_Invasion/scenarios/11_Captured.cfg

@@ -451,6 +451,12 @@
                     [then]
                         {VARIABLE_OP possible_prisoners[0].hitpoints multiply 0.75}
 
+                        [kill]
+                            side=1
+                            x,y=recall,recall
+                            id=$possible_prisoners[0].id
+                        [/kill]
+
                         [unstore_unit]
                             variable=possible_prisoners[0]
                             x,y=$prisoner_locations[$i].x,$prisoner_locations[$i].y

players_changelog

@@ -3,6 +3,10 @@ changes may be omitted). For a complete list of changes, see the main
 changelog: http://svn.gna.org/viewcvs/*checkout*/wesnoth/trunk/changelog
 
 Version 1.9.3+svn:
+ * Campaigns:
+   * Eastern Invasion:
+     * Fixed bug #15950: Made 11_Captured remove units from recall list,
+       preventing units being 'healed' upon load.
  * Language and i18n:
    * Updated translations: Dutch, Finnish, Galician, Hebrew, Japanese, Korean,
      Lithuanian, Russian, Slovak.