fix:

ota lang debug

Controller/EquipmentOTA.py

@@ -366,9 +366,10 @@ class EquipmentVersionView(View):
             ev_qs = ev_qs.filter(code__contains=code)
         if lang:
             if lang == 'cn' or lang == 'zh-Hans':
-                ev_qs = ev_qs.filter(Q(lang=lang) | Q(lang=lang))
+                ev_qs = ev_qs.filter(Q(lang='cn') | Q(lang='zh-Hans'))
             else:
                 ev_qs = ev_qs.filter(lang=lang)
+
         count = ev_qs.count()
         ev_qs = ev_qs[(page - 1) * line:page * line].values()
         ev_ls = CommonService.qs_to_list(ev_qs)