fix: run comment translation logic on english builds (#48520)

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

curriculum/getChallenges.js

@@ -34,9 +34,7 @@ const COMMENT_TRANSLATIONS = createCommentMap(
 
 function createCommentMap(dictionariesDir) {
   // get all the languages for which there are dictionaries.
-  const languages = fs
-    .readdirSync(dictionariesDir)
-    .filter(x => x !== 'english');
+  const languages = fs.readdirSync(dictionariesDir);
 
   // get all their dictionaries
   const dictionaries = languages.reduce(
@@ -363,18 +361,18 @@ Challenges that have been already audited cannot fall back to their English vers
 
     await validate(filePath, meta.superBlock);
 
-    const useEnglish =
-      lang === 'english' ||
-      !isAuditedCert(lang, meta.superBlock) ||
-      !fs.existsSync(getFullPath(lang, filePath));
+    // We always try to translate comments (even English ones) to confirm that translations exist.
+    const translateComments =
+      isAuditedCert(lang, meta.superBlock) &&
+      fs.existsSync(getFullPath(lang, filePath));
 
-    const challenge = await (useEnglish
-      ? parseMD(getFullPath('english', filePath))
-      : parseTranslation(
+    const challenge = await (translateComments
+      ? parseTranslation(
           getFullPath(lang, filePath),
           COMMENT_TRANSLATIONS,
           lang
-        ));
+        )
+      : parseMD(getFullPath('english', filePath)));
 
     addMetaToChallenge(challenge, meta);