only fetch language data from Babel if it is missing

Author: TimidRobot

cc_legal_tools/settings/base.py

@@ -234,7 +234,7 @@
     "name": "Northern Sotho",
     "name_local": "Sesotho sa Leboa",
 }
-# Aranese (an Occitan variant)
+# Aranese (an Occitan variant, CLDR: oc-ES)
 LANG_INFO["oc-aranes"] = {
     "bidi": False,
     "code": "oc-aranes",

i18n/utils.py

@@ -343,9 +343,12 @@ def update_lang_info(language_code):
         if language_code not in LANG_INFO:
             LANG_INFO[language_code] = {}
         lang_info = LANG_INFO[language_code]
-        lang_info["name"] = locale.get_display_name("en")
-        lang_info["name_local"] = locale.get_display_name(locale_name)
-        lang_info["bidi"] = order_to_bidi[locale.character_order]
+        if not lang_info.get("name"):
+            lang_info["name"] = locale.get_display_name("en")
+        if not lang_info.get("name_local"):
+            lang_info["name_local"] = locale.get_display_name(locale_name)
+        if not lang_info.get("bidi"):
+            lang_info["bidi"] = order_to_bidi[locale.character_order]
     except UnknownLocaleError:
         pass