[tracker] tracker-extract-mp3: Fix albumArtist coalescing

[Carlos Garnacho <carlosg src gnome org>]

commit 03bcbda3c2a8624cc0cfed3c889e270cf008bb19
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Jul 16 13:16:44 2016 +0200

    tracker-extract-mp3: Fix albumArtist coalescing
    
    It seems the fix in commit 6dc2c85856 got oddly merged with the
    TrackerResource work, this fixes coalescing so the performer is
    used again as a last resort to determining the nmm:albumArtist.

 src/tracker-extract/tracker-extract-mp3.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-mp3.c b/src/tracker-extract/tracker-extract-mp3.c
index 4fe8a9b..ef30342 100644
--- a/src/tracker-extract/tracker-extract-mp3.c
+++ b/src/tracker-extract/tracker-extract-mp3.c
@@ -2363,10 +2363,10 @@ tracker_extract_get_metadata (TrackerExtractInfo *info)
                                                    md.id3v22.performer2,
                                                    md.id3v1.artist);
 
-       md.album_artist_name = tracker_coalesce_strip (3, md.id3v24.performer2,
+       md.album_artist_name = tracker_coalesce_strip (4, md.id3v24.performer2,
                                                       md.id3v23.performer2,
                                                       md.id3v22.performer2,
-                                                      md.performer);
+                                                      md.performer_name);
 
        md.album_name = tracker_coalesce_strip (4, md.id3v24.album,
                                                md.id3v23.album,