First character of each new line in note is typed twice

[jpurdy647]

Describe the bug
Every new line, not just the first, has the first character duplicated. For example: "Hello" appears as "HHello". "B" appears as "BB". The extra character appears as soon as the live change syncs, a fraction of a second after the first character is typed. The issue does not repeat until starting another new line.

To Reproduce
Steps to reproduce the behavior:

1. Create a new .md note
2. start a new line
3. type 1 character of your choice
4. note the character gets entered twice, the duplicate must be deleted
5. Sometimes the first character gets duplicated at the time the second character is typed but it is always the first letter or character

Expected behavior
What you type gets entered a single time per key press.

Screenshots
Video: https://nc.j64.uk/s/AWHRrFrr7t76dSa

Server details:

• Nextcloud version: 31.0.10
• PHP Version: 8.3.26
• Database: pgsql PostgreSQL 17.6 on x86_64-pc-linux-musl, compiled by gcc (Alpine 14.2.0) 14.2.0, 64-bit

Client details:

• OS: Android
• Browser: Native app
• Browser version: N/A
• Device: Google Pixel 8

Logs

Nextcloud log (data/nextcloud.log)

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Browser log

Not an issue in browser
(In browser backspace does not delete a line though, line-breaks cannot be deleted, unknown if this is related)