Fix i18n word dedupe casing variants

scripts/i18n-v2-word-dedupe.mjs

@@ -275,7 +275,24 @@ const transformLocale = (locale, originalMessages) => {
       (entry) => normalizeToken(entry.value) === normalized
     );
     if (existingWordEntry) {
-      tokenToWord.set(normalized, { path: `words.${existingWordEntry.key}`, value: existingWordEntry.value });
+      const word = {
+        path: `words.${existingWordEntry.key}`,
+        value: existingWordEntry.value,
+        variants: new Map(),
+      };
+
+      const casings = [...stat.casings.keys()].sort(compareStringValues);
+      for (const casing of casings) {
+        if (modifierForToken(casing, word) !== null) {
+          continue;
+        }
+
+        const variantKey = slugify(`${normalized}_${casing}`, usedKeys);
+        generatedWords[variantKey] = casing;
+        word.variants.set(casing, { path: `words.generated.${variantKey}`, value: casing });
+      }
+
+      tokenToWord.set(normalized, word);
       continue;
     }