forward port fix for deleting files of magnet link to master

ChangeLog

@@ -76,6 +76,8 @@
 	* almost completely changed the storage interface (for custom storage)
 	* added support for hashing pieces in multiple threads
 
+	* fixed bug when deleting files for magnet links before they had metadata
+
 1.0.7 release
 
 	* fix bug where loading settings via load_state() would not trigger all

simulation/libsimulator

@@ -1 +1 @@
-Subproject commit a6129b41688ae3caa667f0ac766080fbee28eb37
+Subproject commit 8417cbee7f1a813f032c5c1ed81e1f2881af7580

src/torrent.cpp

@@ -8770,6 +8770,16 @@ namespace libtorrent
 			return;
 		}
 
+		// if we don't have metadata yet, we don't know anything about the file
+		// structure and we have to assume we don't have any file. Deleting files
+		// in this mode would cause us to (recursively) delete m_save_path, which
+		// is bad.
+		if (!valid_metadata())
+		{
+			alerts().emplace_alert<torrent_deleted_alert>(get_handle(), m_torrent_file->info_hash());
+			return;
+		}
+
 		// storage may be NULL during shutdown
 		if (m_storage.get())
 		{