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> And as for removing the contact from groups, is it possible at all? What if new message arrives, of course containing the contact address in "To"? `forget_contact` is only...

Seems `image` crate encoder for JPEG accepts rgba images: https://github.com/image-rs/image/blob/f1e34f365133a33a27dac5bc59c93d1cfb34a37e/src/codecs/jpeg/encoder.rs#L471-L475 But I have not figured out what it does in this case just from looking at the code. Guess we...

I think replacement message should use the same `In-Reply-To` as the original message. If it is the first message in a chat, which is unlikely in case of a bot...

One drawback of not updating `rfc724_mid` or storing `Message-ID` of the replacement message anywhere is that `prefetch_should_download` will not be able to catch that the message was already downloaded if...

> If the superseded message does not exist and is not in the trash a new message is created normally (basically this is what would happen with current core that...

> If the receiving delta chat ignores the supersedes header it will.just appear as a new message which makes sense. This will not work properly because the bot will think...

Closing currently as there are no plans to add webxdc upgrade API. xstore works without it and is stable without the need for upgrade, while apps are added to it...

Loading `from_id` only once is likely the easiest. With `chat_id` I have not checked, but generally assignment of messages to chats is complicated by itself, so this could be a...

Reopening because we are reverting the fix in #5045.

We will have to fix this by looking at UIDNEXT every time we SELECT (basically do what select_with_uidvalidity does) and together with #4936 which is merged and not reverted worst...