Add bindings for discid/release-list.

lib/musicbrainz.rb

@@ -24,6 +24,7 @@ require "musicbrainz/models/track"
 require "musicbrainz/bindings/artist"
 require "musicbrainz/bindings/artist_search"
 require "musicbrainz/bindings/artist_release_groups"
+require "musicbrainz/bindings/discid_releases"
 require "musicbrainz/bindings/relations"
 require "musicbrainz/bindings/release_group"
 require "musicbrainz/bindings/release_group_search"

lib/musicbrainz/bindings/discid_releases.rb

@@ -0,0 +1,13 @@
+module MusicBrainz
+  module Bindings
+    module DiscidReleases
+      def parse(xml)
+        xml.xpath('./disc/release-list/release').map do |xml|
+          MusicBrainz::Bindings::Release.parse(xml)
+        end
+      end
+
+      extend self
+    end
+  end
+end

lib/musicbrainz/models/release.rb

@@ -28,8 +28,8 @@ module MusicBrainz
       end
 
       def find_by_discid(id)
-        client.load(:discid, { id: id, inc: [:media, :release_groups] }, {
-          binding: :release_group_releases,
+        client.load(:discid, { id: id }, {
+          binding: :discid_releases,
           create_models: :release
         })
       end