fix(core/translations): preserve model groups when running cli.py gen

[no changelog]

core/translations/cli.py

@@ -124,11 +124,11 @@ def fonts_dir(self) -> Path:
     def _lang_path(self, lang: str) -> Path:
         return self.path / f"{lang}.json"
 
-    def load_lang(self, lang: str) -> translations.JsonDef:
+    def load_lang(self, lang: str, model_groups: bool = True) -> translations.JsonDef:
         json_def = json.loads(self._lang_path(lang).read_text())
         # special-case for T2B1 and T3B1, so that we keep the info in one place instead
         # of duplicating it in two entries, risking a desync
-        if (fonts_safe3 := json_def.get("fonts", {}).get("##Safe3")) is not None:
+        if model_groups and (fonts_safe3 := json_def.get("fonts", {}).get("##Safe3")) is not None:
             json_def["fonts"]["T2B1"] = fonts_safe3
             json_def["fonts"]["T3B1"] = fonts_safe3
         return json_def
@@ -150,7 +150,7 @@ def all_languages(self) -> t.Iterable[str]:
     def update_version_from_h(self, check: bool = False) -> VersionTuple:
         version = _version_from_version_h()
         for lang in self.all_languages():
-            blob_json = self.load_lang(lang)
+            blob_json = self.load_lang(lang, model_groups=False)
             blob_version = translations.version_from_json(
                 blob_json["header"]["version"]
             )