- removed all asserts from the interpolation objects' Destroy methods. The condition will not be true after a failed savegame write occured.

- fixed: D_ErrorCleanup must clear 'savegamerestore'.
- fixed: Cleaning up when loading a savegame failed while restoring the thinker list did not work. There were two issues:
  * removed the asserts in GC::SweepList because they get triggered by thinkers that were not fully initialized during loading.
  * AActor::UnlinkFromWorld may not assume that the sector list has been initialized when this function is called. 

SVN r3274 (trunk)

src/d_main.cpp

@@ -912,6 +912,7 @@ void D_Display ()
 
 void D_ErrorCleanup ()
 {
+	savegamerestore = false;
 	screen->Unlock ();
 	bglobal.RemoveAllBots (true);
 	D_QuitNetGame ();