Scheduled messages don't work when using Chinese language pack

[JSGRD22]

Steps to reproduce:

1. Install Chinese language pack from https://t.me/setlanguage/zh-hans-beta#
2. Attempt to send a scheduled message by right-clicking send and clicking "定时消息".
3. Observe that nothing happens.

Expected behaviour:
As seen when using the English language pack, clicking "Schedule message" opens the scheduling dialog box.

Notably, the dialog box works when sending a message to "Saved Messages" or "我的收藏",