Toggle checkbox deletes card description.

[santifa]

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Describe the bug
Current Version 1.2.1

If a descriptions contains checkboxes, the toggeling of a checkbox (checked -> unchecked or otherwise)
deletes the entire description of a card.

To Reproduce
Steps to reproduce the behavior:

1. Go to some card
2. Click on some checkbox
3. See your description going away for ever

Expected behavior
It should toggle the checkbox.

Screenshots
Nothing to see here

Client details:

• OS: Arch Linux
• Browser Firefox 82
• Device: Desktop

Server details

Server details **Operating system**: Debian 9

Web server: Apache

Database: MariaDB

PHP version: 7.3

Nextcloud version: 19.0.4

Where did you install Nextcloud from: from source

Signing status:

Login as admin user into your Nextcloud and access
http://example.com/index.php/settings/integrity/failed
paste the results here.

No errors here.

List of activated apps:

• accessibility: 1.5.0
• activity: 2.12.1
• admin_audit: 1.9.0
• apporder: 0.11.0
• calendar: 2.0.4
• cloud_federation_api: 1.2.0
• cms_pico: 1.0.10
• comments: 1.9.0
• contacts: 3.4.2
• contactsinteraction: 1.0.0
• dav: 1.15.0
• deck: 1.2.1
• drawio: 0.9.7
• event_update_notification: 1.0.2
• external: 3.6.0
• extract: 1.2.5
• federatedfilesharing: 1.9.0
• federation: 1.9.0
• files: 1.14.0
• files_accesscontrol: 1.9.2
• files_external: 1.10.0
• files_fulltextsearch: 1.4.3
• files_fulltextsearch_tesseract: 1.4.2
• files_markdown: 2.3.1
• files_pdfviewer: 1.8.0
• files_retention: 1.8.2
• files_rightclick: 0.16.0
• files_sharing: 1.11.0
• files_trashbin: 1.9.0
• files_versions: 1.12.0
• files_videoplayer: 1.8.0
• firstrunwizard: 2.8.0
• fulltextsearch: 1.4.2
• fulltextsearch_elasticsearch: 1.5.2
• groupfolders: 7.1.1
• ldap_write_support: 1.1.0
• logreader: 2.4.0
• lookup_server_connector: 1.7.0
• mail: 1.4.1
• metadata: 0.12.0
• nextcloud_announcements: 1.8.0
• notifications: 2.7.0
• oauth2: 1.7.0
• password_policy: 1.9.1
• passwords: 2020.11.0
• photos: 1.1.0
• privacy: 1.3.0
• provisioning_api: 1.9.0
• recommendations: 0.7.0
• richdocuments: 3.7.9
• serverinfo: 1.9.0
• settings: 1.1.0
• sharebymail: 1.9.0
• socialsharing_email: 2.1.0
• spreed: 9.0.6
• support: 1.2.1
• systemtags: 1.9.0
• tasks: 0.13.6
• text: 3.0.1
• theming: 1.10.0
• twofactor_backupcodes: 1.8.0
• updatenotification: 1.9.0
• viewer: 1.3.0
• workflow_pdf_converter: 1.4.0
• workflowengine: 2.1.0

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration:

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "overwriteprotocol": "https",
        "trusted_domains": [
            "192.168.1.50",
            "***REMOVED SENSITIVE VALUE***",
            "***REMOVED SENSITIVE VALUE***",
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "19.0.4.2",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "maintenance": false,
        "mail_smtpmode": "smtp",
        "mail_smtpauthtype": "LOGIN",
        "theme": "",
        "loglevel": 2,
        "updater.release.channel": "stable",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "mail_sendmailmode": "smtp",
        "mail_smtpsecure": "tls",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mysql.utf8mb4": true,
        "onlyoffice": {
            "verify_peer_off": true
        },
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "default_language": "de",
        "skeletondirectory": "",
        "app_install_overwrite": [
            "ocr"
        ]
    }
}

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder

or

Insert your config.php content here
Make sure to remove all sensitive content such as passwords. (e.g. database password, passwordsalt, secret, smtp password, …)

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...

Logs

Nextcloud log (data/nextcloud.log)

Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
- jQuery is deprecated

b) The network log
- Nothing to show 
c) ...

[stefan-niedermann]

Duplicate of #2580 and #2591

A fix is already in the pipeline.

You should be able to restore the description content from the timeline tab.