Thread scrolls to bottom when a notification arrives from another thread #902

Checklist

• I can reproduce the bug with the latest version given here.
• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected app version

1.9.1

Affected Android/Custom ROM version

Android 16

Affected device model

Samsung Galaxy S22

How did you install the app?

F-Droid / IzzyOnDroid

Steps to reproduce the bug

1. Open conversation A and scroll up into older messages.
2. While still scrolling, receive a new message in conversation B (notification appears).
3. Observe conversation A.

Expected behavior

Conversation A keeps its scroll position. A message in a different thread shouldn't affect it.

Actual behavior

Conversation A jumps to the bottom when the notification arrives.

Screenshots/Screen recordings

No response

Additional information

Not rooted, disabled all animations

Maybe the new-message receiver triggers a refresh that reloads the open thread and scrolls to the bottom regardless of which thread the message belongs to? I haven't verified yet, but I will be testing this in my fork.