Inconsistent "New note" name behavior in web UI

This is a very minor bug.

Steps to reproduce

1. Ensure no notes are named "New note"
2. Create a new note in the web UI (I will call this note A)
3. Observe the note is named "New note"
4. Write "foo" in the note body
5. Click on the check icon to save the note
6. Observe the note is renamed to "foo"
7. Edit "foo" in the note body to "foobar"
8. Click on the check icon to save the note
9. Observe the note is renamed to "foobar"
10. Create a new note in the web UI (I will call this note B)
11. Observe the note is named "New note"
12. Write "bar" in the note body
13. Create a new note in the web UI (I will call this note C)
14. Observe note B is still named "New note"
15. Observe note C is named "New note (1)"
16. Write "baz" in the note body
17. Create a new note in the web UI (I will call this note D)
18. Observe note B is still named "New note"
19. Observe note C is named "New note (1)"
20. Observe note D is named "New note (2)"
21. Write "quux" in the note body
22. Click on the check icon to save note D
23. Observe note D is renamed to "quux"
24. Click on note B
25. Edit "bar" in the note body to "bar bar"
26. Click on the check icon to save note B
27. Observe note B is renamed to "bar bar"
28. Edit "bar bar" in the note body to "bar bar bar"
29. Click on the check icon to save note B
30. Observe note B is renamed to "bar bar bar"
31. Click on note C
32. Write "baz baz" in the note body
33. Click on the check icon to save note C
34. Observe note C is still named "New note (1)"
35. Click on note B
36. Edit "bar bar bar" in the note body to "bar bar bar bar"
37. Click on the check icon to save note B
38. Observe note B is still named "bar bar bar"
39. Question my sanity after writing this

Expected behaviour

Consistent

Actual behaviour

Inconsistent

Server

• Notes app version: 4.12.3
• Nextcloud version: 32.0.0.13
• OS: Debian 12.11
• Web server: apache2 2.4.62
• PHP version: 8.2.28
• Database: MariaDB 10.11.11

Nextcloud configuration:

"system": {
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "nextcloud.example.com"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "dbtype": "mysql",
    "version": "32.0.0.13",
    "overwrite.cli.url": "https:\/\/nextcloud.example.com",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "mysql.utf8mb4": true,
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "memcache.local": "\\OC\\Memcache\\APCu",
    "memcache.distributed": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "***REMOVED SENSITIVE VALUE***",
        "port": 0,
        "dbindex": 0,
        "password": "***REMOVED SENSITIVE VALUE***",
        "timeout": 1.5
    },
    "maintenance": false,
    "maintenance_window_start": 1,
    "theme": "",
    "loglevel": 2,
    "default_phone_region": "US",
    "mail_smtpmode": "smtp",
    "mail_smtpsecure": "ssl",
    "mail_sendmailmode": "smtp",
    "memories.exiftool": "\/var\/www\/nextcloud.example.com\/apps\/memories\/bin-ext\/exiftool-amd64-glibc",
    "memories.vod.path": "\/var\/www\/nextcloud.example.com\/apps\/memories\/bin-ext\/go-vod-amd64",
    "memories.db.triggers.fcu": true
}

}

Client

Please complete the following information.

• Browser (incl. version): Firefox 142.0 (64-bit)
• OS: Debian forky/sid (using KDE)

Start by reproducing the note-creation and save sequence in the web UI, then trace the code handling note titles during creation and saving. The fix is done when notes created as “New note” receive consistent names and later edits follow one consistent naming behavior across the reported sequence.