[gnome-chess/gnome-3-10] There is no computer player if engine is not found

[Michael Catanzaro <mcatanzaro src gnome org>]

commit b079b1c7b7aed251860fd2d601372505c5be7689
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue Jan 7 18:46:58 2014 -0600

    There is no computer player if engine is not found
    
    Confusingly, human_player == null means there are two humans.

 src/gnome-chess.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gnome-chess.vala b/src/gnome-chess.vala
index 7729b83..f74021c 100644
--- a/src/gnome-chess.vala
+++ b/src/gnome-chess.vala
@@ -540,6 +540,7 @@ public class Application : Gtk.Application
         {
             game.black.local_human = true;
             game.white.local_human = true;
+            human_player = null;
         }
         else
         {