playlist: re-randomize when explicitly playing a new song

When random is enabled and a user explicitly specifies
a certain song on the playlist should be played; we need
to re-randomize the internal ordering.

To reproduce this, assuming a four song playlist:

  play <song_a>
  next => <song_b>
  next => <song_c>
  next => <song_d>
  play <song_a>
  next => <song_b>
  next => <song_c>
  next => <song_d>
  ...

That is, the "next" command restarts song_{b,c,d} the second
time "play" starts playing song_a.

Thus, the second time "play" is called, the ordering of
song_{b,c,d} needs to be reshuffled.

Reported-by: Qball

1 files changed, 1 insertions, 0 deletions

diff --git a/src/playlist.c b/src/playlist.c
index 9546dee70..89b4fdd99 100644
--- a/src/playlist.c
+++ b/src/playlist.c
@@ -945,6 +945,7 @@ int playPlaylist(int fd, int song, int stopOnError)
 			playlist.current = 0;
 			swapOrder(i, playlist.current);
 			i = playlist.current;
+			randomizeOrder(i + 1, playlist.length - 1);
 		}
 	}