Fixed #634 - crash when exiting a game with ghost

(ghost karts were not removed, causing problems when
drawing all later).


git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11252 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/modes/world.cpp

@@ -265,6 +265,16 @@ Controller* World::loadAIController(AbstractKart *kart)
 //-----------------------------------------------------------------------------
 World::~World()
 {
+    if(ReplayPlay::get())
+    {
+        // Destroy the old replay object, which also stored the ghost
+        // karts, and create a new one (which means that in further
+        // races the usage of ghosts will still be enabled).
+        ReplayPlay::destroy();
+        ReplayPlay::create();
+    }
+
+
     // In case that a race is aborted (e.g. track not found) m_track is 0.
     if(m_track)
         m_track->cleanup();