own planned messages shown immediately

[jgibbon]

Guillaume wrote via Telegram:

I found a bug in Fernschreiber when using planned messages :

1/ connect to Telegram FOSS for Android and plan a message to be sent automatically at a future date (in my test 12 hours in the future)
2/ connect to Frenschreiber and check the conversation with the contact

Expected result: the planned message doesn't appear (as was the prior to the latest update)
Observed result: the planned message is already in the conversation and appears to have been sent 648 days ago

I could reproduce it by scheduling a message from Telegram X or Telegram FOSS while having the chat open in Fernschreiber. Leaving the chat page and re-entering seemed to hide it.