Can't set default or unlimited quota

[JSoko]

Steps to reproduce

1. try to assign unlimited quota oder default quota

Expected behaviour

quota should be assigned to the user

Actual behaviour

quota is not assigned,
It is shown:
invalid quota value "default"
invalid quota value "none"

Server configuration

Operating system: Linux OdOc 3.10.96 #1 SMP PREEMPT Mon May 23 01:50:06 BRT 2016 armv7l

Web server: apache2handler

Database: mysql

PHP version: 7.0.8-0ubuntu0.16.04.2

Nextcloud version: 9.1.0.16

Updated from an older Nextcloud/ownCloud or fresh install:

Where did you install Nextcloud from:
download tar.gz
Signing status:

Signing status

```
    ```

List of activated apps:

App list

```
Enabled:
 - activity: 2.3.2
 - admin_audit: 1.0.0
 - calendar: 1
 - comments: 1.0.0
 - dav: 1.0.0
 - direct_menu: 1
 - federatedfilesharing: 1.0.1
 - files: 1.5.2
 - files_pdfviewer: 0.8.1
 - files_sharing: 1.0.0
 - files_texteditor: 2.1
 - files_trashbin: 1.0.0
 - files_versions: 1.3.0
 - files_videoplayer: 0.9.8
 - html5_videoplayer: 1
 - issuetemplate: 0.0.1
 - logreader: 1
 - news: 1
 - notes: 2.0.2
 - notifications: 0.3.0
 - ownbackup: 1
 - password_policy: 1.0.0
 - provisioning_api: 1.0.0
 - qownnotesapi: 1
 - serverinfo: 1.1.1
 - shorten: 1
 - spreedme: 1
 - survey_client: 0.1.5
 - templateeditor: 0.1
 - theming: 1.0.1
 - updatenotification: 1.0.1
 - workflowengine: 1.0.1

Disabled:
 - encryption
 - external
 - federation
 - files_accesscontrol
 - files_automatedtagging
 - files_external
 - files_retention
 - firstrunwizard
 - gallery
 - ownnote
 - passwordpolicy
 - systemtags
 - user_external
 - user_ldap
 - user_saml
```

The content of config/config.php:

Config report

{
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "datadirectory": "\/var\/www\/owncloud\/data",
    "dbtype": "mysql",
    "version": "9.1.0.16",
    "theme": "",
    "maintenance": false,
    "integrity.check.disabled": true,
    "dbname": "owncloud",
    "dbhost": "127.0.0.1",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "loglevel": 0,
    "logtimezone": "Europe\/Berlin",
    "log_rotate_size": 500000,
    "cron_log": true,
    "asset-pipeline.enabled": false,
    "assetdirectory": "\/var\/www\/owncloud",
    "maxZipInputSize": 2147483648,
    "overwritewebroot": "\/",
    "overwrite.cli.url": "\/",
    "htaccess.RewriteBase": "\/",
    "allowZipDownload": true,
    "versions": "true",
    "versions_retention_obligation": "1,3",
    "instanceid": "5072f7e9eec7e",
    "knowledgebaseenabled": true,
    "check_for_working_webdav": true,
    "check_for_working_htaccess": true,
    "check_for_working_wellknown_setup": true,
    "has_internet_connection": true,
    "forcessl": true,
    "activity_expire_days": 8,
    "appcodechecker": false,
    "skeletondirectory": "",
    "trashbin_retention_obligation": "auto,15",
    "appstore.experimental.enabled": true,
    "trusted_domains": [
        "o***.net",
        "****.net",
        "192.168.1.234"
    ],
    "mail_smtpmode": "smtp",
    "mail_smtphost": "smtp.1und1.de",
    "mail_smtpsecure": "tls",
    "mail_smtpauth": 1,
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "mail_from_address": "no-reply",
    "mail_domain": "****.de",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "587",
    "updater.release.channel": "stable"
}

Are you using external storage, if yes which one: local/smb/sftp/...
no
Are you using encryption: yes/no
no
Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
no

Client configuration

Browser:
Firefox
Operating system:
Windows 10

Logs

Web server error log

Web server error log

`
Insert your webserver log here

`

#### Nextcloud log (data/nextcloud.log)

Nextcloud log

`
Insert your Nextcloud log here

`

#### Browser log

Browser log

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

a) The javascript console log
b) The network log
c) ...
```

[thrdroom]

I can confirm this behavior - same problem over here!
Running fresh installed Nextcloud 10.

[JSoko]

Could be adressed by this pr:
#1053

[rullzer]

Yes should be fixed by #1053