Fix duplicated lists.

Thanks to xet7 !

Fixes #5952

client/lib/fixDuplicateLists.js

@@ -91,3 +91,4 @@ export const fixDuplicateLists = {
 if (typeof window !== 'undefined') {
   window.fixDuplicateLists = fixDuplicateLists;
 }
+

fix-duplicate-lists.js

@@ -284,3 +284,4 @@ if (require.main === module) {
 }
 
 module.exports = DuplicateListsFixer;
+

server/methods/fixDuplicateLists.js

@@ -232,3 +232,4 @@ Meteor.methods({
     };
   }
 });
+