Merge pull request #16759 from Bouncey/fix/filtrePrivateChallenges

fix(redirects): Do not add private blocks/challenges to the map

server/utils/map.js

@@ -33,7 +33,8 @@ const getFirstChallenge = _.once(_getFirstChallenge);
  */
 export function _cachedMap({ Block, Challenge }) {
   const challenges = Challenge.find$({
-    order: [ 'order ASC', 'suborder ASC' ]
+    order: [ 'order ASC', 'suborder ASC' ],
+    where: { isPrivate: false }
   });
   const challengeMap = challenges
     .map(
@@ -44,7 +45,10 @@ export function _cachedMap({ Block, Challenge }) {
           return hash;
         }, {})
     );
-  const blocks = Block.find$({ order: [ 'superOrder ASC', 'order ASC' ] });
+  const blocks = Block.find$({
+    order: [ 'superOrder ASC', 'order ASC' ],
+    where: { isPrivate: false }
+  });
   const blockMap = Observable.combineLatest(
     blocks.map(
       blocks => blocks