Merge tag 'v0.23.13'

release v0.23.13

src/db/plugins/simple/Directory.cxx

@@ -111,6 +111,18 @@ Directory::LookupTargetSong(std::string_view target) noexcept
 	return lr.directory->FindSong(lr.rest);
 }
 
+void
+Directory::ClearInPlaylist() noexcept
+{
+	assert(holding_db_lock());
+
+	for (auto &child : children)
+		child.ClearInPlaylist();
+
+	for (auto &song : songs)
+		song.in_playlist = false;
+}
+
 void
 Directory::PruneEmpty() noexcept
 {

src/db/plugins/simple/Directory.hxx

@@ -257,6 +257,14 @@ public:
 	 */
 	SongPtr RemoveSong(Song *song) noexcept;
 
+	/**
+	 * Recursively walk through the whole tree and set all
+	 * `Song::in_playlist` fields to `false`.
+	 *
+	 * Caller must lock the #db_mutex.
+	 */
+	void ClearInPlaylist() noexcept;
+
 	/**
 	 * Caller must lock the #db_mutex.
 	 */

src/db/update/Walk.cxx

@@ -515,6 +515,7 @@ UpdateWalk::Walk(Directory &root, const char *path, bool discard) noexcept
 
 	{
 		const ScopeDatabaseLock protect;
+		root.ClearInPlaylist();
 		PurgeDanglingFromPlaylists(root);
 	}