Do not replace spaces with tabs

[arnowelzel]

Steps to reproduce

1. Create a text file
2. Enter some text containing one or more lines with four or more spaces in the beginning
3. Wait until the file is saved and open it again

Expected behaviour

The editor leaves entered white spaces as they are.

Actual behaviour

When entering multiple spaces, the editor replaces them with tabs assuming tab stops every 4 spaces. This can cause confusion when opening the file somewhere else where the tab stops are 8 spaces and also when editing tables which are created to be readable even without a markdown formatter.

Server configuration detail

Operating system: Linux 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018 x86_64

Webserver: Apache (fpm-fcgi)

Database: mysql 10.0.34 (MariaDB)

PHP version: 7.0.25-0ubuntu0.16.04.1 Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, standard, cgi-fcgi, mysqlnd, PDO, xml, apcu, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, imagick, imap, intl, json, exif, mcrypt, memcache, mysqli, pdo_mysql, pdo_sqlite, Phar, posix, pspell, readline, recode, shmop, SimpleXML, soap, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, wddx, xmlreader, xmlrpc, xmlwriter, xsl, zip, Zend OPcache

Nextcloud version: 13.0.0 - 13.0.0.14

Updated from an older Nextcloud/ownCloud or fresh install: updated from 12.0.5

Where did you install Nextcloud from: nextcloud.com

List of activated apps

Enabled:
 - activity: 2.6.1
 - apporder: 0.4.1
 - bookmarks: 0.11.0
 - bruteforcesettings: 1.0.3
 - calendar: 1.6.1
 - caniupdate: 0.1.2
 - comments: 1.3.0
 - contacts: 2.1.2
 - dav: 1.4.6
 - deck: 0.3.1
 - defaultlinkopen: 1.0.0
 - drawio: 0.8.9
 - external: 3.0.2
 - federatedfilesharing: 1.3.1
 - federation: 1.3.0
 - files: 1.8.0
 - files_markdown: 2.0.4
 - files_pdfviewer: 1.2.0
 - files_sharing: 1.5.0
 - files_texteditor: 2.5.1
 - files_trashbin: 1.3.0
 - files_versions: 1.6.0
 - files_videoplayer: 1.2.0
 - firstrunwizard: 2.2.1
 - gallery: 18.0.0
 - gpxmotion: 0.0.6
 - groupfolders: 1.2.0
 - issuetemplate: 0.3.0
 - logreader: 2.0.0
 - lookup_server_connector: 1.1.0
 - mail: 0.7.10
 - nextcloud_announcements: 1.2.0
 - notifications: 2.1.2
 - oauth2: 1.1.0
 - password_policy: 1.3.0
 - provisioning_api: 1.3.0
 - richdocuments: 2.0.3
 - serverinfo: 1.3.0
 - sharebymail: 1.3.0
 - socialsharing_email: 1.0.3
 - spreed: 3.1.0
 - survey_client: 1.1.0
 - systemtags: 1.3.0
 - tasks: 0.9.6
 - theming: 1.4.1
 - theming_customcss: 1.0.0
 - twofactor_backupcodes: 1.2.3
 - updatenotification: 1.3.0
 - workflowengine: 1.3.0
Disabled:
 - admin_audit
 - encryption
 - files_external
 - onlyoffice
 - user_external
 - user_ldap

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "nextcloud.0x0c.de"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "https:\/\/nextcloud.0x0c.de",
    "dbtype": "mysql",
    "version": "13.0.0.14",
    "installed": true,
    "htaccess.RewriteBase": "\/",
    "maintenance": false,
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "memcache.local": "\\OC\\Memcache\\APCu",
    "knowledgebaseenabled": false,
    "theme": "",
    "loglevel": 2,
    "mysql.utf8mb4": false
}

Are you using external storage, if yes which one: no

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0