tracks/haskell/config.json in trackler-2.2.1.45 vs tracks/haskell/config.json in trackler-2.2.1.46

@@ -113,9 +113,18 @@
       "difficulty": 2,
       "topics": [
       ]
     },
     {
+      "uuid": "4e10e864-2fe4-4926-b908-f70645698999",
+      "slug": "complex-numbers",
+      "core": false,
+      "unlocked_by": null,
+      "difficulty": 2,
+      "topics": [
+      ]
+    },
+    {
       "uuid": "197a543c-d9c7-41c3-814c-4b1ece3db568",
       "slug": "grains",
       "core": false,
       "unlocked_by": null,
       "difficulty": 2,