playlist: Rework playlist modified detection and dirplay

The modified state is now an explicit flag that has to be
set whenever a user-triggered modification occurs. This is
recorded in the control file to ensure it doesn't get lost
after resume. There may be some places I missed where the
modified flag should be set/cleared, but it seems to work
well enough right now.

Change-Id: I3bdba358fc495b4ca84e389ac6e7bcbef820c219

1 files changed, 0 insertions, 1 deletions

diff --git a/apps/tagtree.c b/apps/tagtree.c
index e715d4518b..78bf6bf255 100644
--- a/apps/tagtree.c
+++ b/apps/tagtree.c
@@ -2359,7 +2359,6 @@ static int tagtree_play_folder(struct tree_context* c)
     }
 
     playlist_start(start_index, 0, 0);
-    playlist_set_modified(NULL, false);
     return 0;
 }