[tracker] tracker-extract: Fix album disc uri in gstreamer

[Marinus Schraal <mschraal src gnome org>]

commit 448a16574a8c5c80b10531ea150760f9f614fabb
Author: Marinus Schraal <mschraal src gnome org>
Date:   Fri Oct 28 00:52:25 2016 +0200

    tracker-extract: Fix album disc uri in gstreamer
    
    It should build the album disc uri with the album_artist_name.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773607

 src/tracker-extract/tracker-extract-gstreamer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index 122ebf8..41ddf6d 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -677,7 +677,7 @@ extractor_maybe_get_album_disc (MetadataExtractor *extractor,
 
         if (album_artist) {
                 album_disc_uri = tracker_sparql_escape_uri_printf ("urn:album-disc:%s:%s:Disc%d",
-                                                                   album_title, album_artist,
+                                                                   album_title, album_artist_name,
                                                                    has_it ? volume_number : 1);
         } else {
                 album_disc_uri = tracker_sparql_escape_uri_printf ("urn:album-disc:%s:Disc%d",