Add changelog entry for PR #4227 (discogs: Skip

Discogs query on insufficiently tagged files).

docs/changelog.rst

@@ -22,12 +22,15 @@ Bug fixes:
 * :doc:`/plugins/unimported`: The new ``ignore_subdirectories`` configuration
   option added in 1.6.0 now has a default value if it hasn't been set.
 * :doc:`/plugins/deezer`: Tolerate missing fields when searching for singleton
-  tracks
+  tracks.
   :bug:`4116`
 * :doc:`/plugins/replaygain`: The type of the internal ``r128_track_gain`` and
   ``r128_album_gain`` fields was changed from integer to float to fix loss of
   precision due to truncation.
   :bug:`4169`
+* :doc:`/plugins/discogs`: Skip Discogs query on insufficiently tagged files
+  (artist and album tags missing) to prevent arbitrary candidate results.
+  :bug:`4227`
 
 For packagers: