fix

src/core/collection/album.rs

@@ -473,4 +473,12 @@ mod tests {
         let expected = meta.clone().with_date(right.date);
         assert_eq!(expected, left.merge(right));
     }
+
+    #[test]
+    fn secondary_types_all_variants() {
+        let mut variants = AlbumSecondaryType::all_variants().to_vec();
+        variants.sort_unstable();
+        variants.dedup();
+        assert_eq!(variants, AlbumSecondaryType::all_variants().to_vec());
+    }
 }