(svn r26820) [1.4] -Backport from trunk:

- Fix: Crashes on joining a server with pending order backups [FS#6112] (r26819)
- Fix: Crashes on start due to dereferencing the -1 index of the file names array of music files (r26809)

src/music_gui.cpp

@@ -200,12 +200,17 @@ static void SelectSongToPlay()
 
 	memset(_cur_playlist, 0, sizeof(_cur_playlist));
 	do {
-		const char *filename = BaseMusic::GetUsedSet()->files[_playlists[_settings_client.music.playlist][i] - 1].filename;
-		/* We are now checking for the existence of that file prior
-		 * to add it to the list of available songs */
-		if (!StrEmpty(filename) && FioCheckFileExists(filename, BASESET_DIR)) {
-			_cur_playlist[j] = _playlists[_settings_client.music.playlist][i];
-			j++;
+		/* File is the index into the file table of the music set. The play list uses 0 as 'no entry',
+		 * so we need to subtract 1. In case of 'no entry' (file = -1), just skip adding it outright. */
+		int file = _playlists[_settings_client.music.playlist][i] - 1;
+		if (file >= 0) {
+			const char *filename = BaseMusic::GetUsedSet()->files[file].filename;
+			/* We are now checking for the existence of that file prior
+			* to add it to the list of available songs */
+			if (!StrEmpty(filename) && FioCheckFileExists(filename, BASESET_DIR)) {
+				_cur_playlist[j] = _playlists[_settings_client.music.playlist][i];
+				j++;
+			}
 		}
 	} while (_playlists[_settings_client.music.playlist][++i] != 0 && j < lengthof(_cur_playlist) - 1);
 

src/saveload/afterload.cpp

@@ -51,6 +51,7 @@
 #include "../core/backup_type.hpp"
 #include "../smallmap_gui.h"
 #include "../news_func.h"
+#include "../order_backup.h"
 #include "../error.h"
 
 
@@ -2914,6 +2915,21 @@ bool AfterLoadGame()
 		}
 	}
 
+	/*
+	 * Only keep order-backups for network clients.
+	 * If we are a network server or not networking, then we just loaded a previously
+	 * saved-by-server savegame. There are no clients with a backup, so clear it.
+	 * Furthermore before savegame version 192 the actual content was always corrupt.
+	 */
+	if (!_networking || _network_server || IsSavegameVersionBefore(192)) {
+		/* Note: We cannot use CleanPool since that skips part of the destructor
+		 * and then leaks un-reachable Orders in the order pool. */
+		OrderBackup *ob;
+		FOR_ALL_ORDER_BACKUPS(ob) {
+			delete ob;
+		}
+	}
+
 
 	/* Station acceptance is some kind of cache */
 	if (IsSavegameVersionBefore(127)) {

src/saveload/order_sl.cpp

@@ -288,20 +288,6 @@ void Load_BKOR()
 		OrderBackup *ob = new (index) OrderBackup();
 		SlObject(ob, GetOrderBackupDescription());
 	}
-
-	/* Only load order-backups for network clients.
-	 * If we are a network server or not networking, then we just loaded a previously
-	 * saved-by-server savegame. There are no clients with a backup, so clear it.
-	 * Furthermore before savegame version 192 the actual content was always corrupt.
-	 */
-	if (!_networking || _network_server || IsSavegameVersionBefore(192)) {
-		/* Note: We cannot use CleanPool since that skips part of the destructor
-		 * and then leaks un-reachable Orders in the order pool. */
-		OrderBackup *ob;
-		FOR_ALL_ORDER_BACKUPS(ob) {
-			delete ob;
-		}
-	}
 }
 
 static void Ptrs_BKOR()