Missing DC_EVENT_CHAT_MODIFIED event when dc_chat_can_send becomes true after secure join

[Amzd]

• Operating System (Linux/Mac/Windows/iOS/Android): iOS
• Core Version: 2.35
• Client Version: deltachat-ios master

Expected behavior

I expected a DC_EVENT_CHAT_MODIFIED event when dc_chat_can_send changes to true during secure join

Actual behavior

Did not get any event even though can_send changed from false to true

Steps to reproduce the problem

these steps are generic, see ios issue for steps on how to reproduce the UI bug that stems from this issue.

1. initiate securejoin
2. start listening for DC_EVENT_CHAT_MODIFIED
3. checked dc_chat_can_send, it still returns false
4. never receive DC_EVENT_CHAT_MODIFIED even though dc_chat_can_send becomes true at some point

deltachat/deltachat-ios#2958

[r10s]

wondering how that works on android/desktop, probably by listening to MSGS_CHANGED - agreeing on that and fixing docs may also close the issue - tho CHAT_MODIFIED seems to be the better fit, agree

EDIT: android works as it does the same things on CONTACTS_CHANGED and CHAT_MODIFIED - and the CONTACTS_CHANGED is emitted
Also, the issue is only about Bob-scanning; for Alice-showing

in any case, can_send should mention the event that is emitted on changes

[Amzd]

If I don't misunderstand this changelog entry then the DC_EVENT_CHAT_MODIFIED event should be triggered when can_send changes

core/CHANGELOG.md

Line 5955 in 6a293ae

which may change as usual on `DC_EVENT_CHAT_MODIFIED` #2508 #2767

[r10s]

yip, that CHANGELOG entry makes the gist pretty clear. so actionable item of this issue is to check if DC_EVENT_CHAT_MODIFIED is actually emitted

and at best, also add a test for that if there is none