Missing N;LANGUAGE=... field breaks sync with iOS?

[romanf]

Steps to reproduce

1. Create a minimal contact using contacts v1.5.4 on OC 9.1.7. Export as VCARD looks like this:

BEGIN:VCARD
VERSION:3.0
FN:cloud test
UID:510a7955-a6f8-47de-8b8d-1dfe5caae0ea
TEL;TYPE=HOME,VOICE:+41123456789
EMAIL;TYPE=HOME:[email protected]
ORG:trash-cloud test
TITLE:Mr+Mr
END:VCARD

This contact does NOT sync to iPhone running iOS 11.4 (15F79)

2. Add a line
   N;LANGUAGE=en-us:Nachname;Vorname;;;
   to the VCARD file, re-import it to contacts

3. Now the contact DOES sync to iPhone.

Server configuration

Operating system: Debian 3.16.57-2

Web server: Apache

Database: MySQL

PHP version: PHP 5.6.36-0+deb8u1

ownCloud version: (see ownCloud admin page): 9.1.7

Contacts version: (see ownCloud apps page) 1.5.4

Updated from an older ownCloud or fresh install: updated

Signing status (ownCloud 9.0 and above):

No errors have been found.

List of activated apps:

Enabled:
  - activity: 2.3.4
  - calendar: 1.5.7
  - comments: 0.3.0
  - configreport: 0.1.1
  - contacts: 1.5.4
  - dav: 0.2.9
  - federatedfilesharing: 0.3.0
  - federation: 0.1.0
  - files: 1.5.1
  - files_external: 0.7.0
  - files_pdfviewer: 0.8.2
  - files_sharing: 0.10.0
  - files_texteditor: 2.2
  - files_trashbin: 0.9.0
  - files_versions: 1.3.0
  - files_videoplayer: 0.9.8
  - firstrunwizard: 1.1
  - gallery: 16.0.2
  - notifications: 0.3.0
  - ownnote: 1.08
  - provisioning_api: 0.5.0
  - systemtags: 0.3.0
  - tasks: true
  - templateeditor: 0.1
  - updatenotification: 0.2.1
  - user_ldap: 0.9.1
Disabled:
  - calendar.bak
  - contacts.bak
  - encryption
  - external
  - files_antivirus
  - tasks.bak
  - user_external

The content of config/config.php:

{
    "system": {
        "instanceid": "oclxzv0euarp",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "cloud.trash.net"
        ],
        "datadirectory": "\/d1\/owncloud-data",
        "overwrite.cli.url": "https:\/\/cloud.trash.net",
        "dbtype": "mysql",
        "version": "9.1.7.2",
        "dbname": "trashcloud",
        "dbhost": "mysql1.local",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "logtimezone": "UTC",
        "installed": true,
        "appstore.experimental.enabled": true,
        "appstoreurl": "https:\/\/marketplace.owncloud.com\/api\/v0",
        "ldapIgnoreNamingRules": false,
        "loglevel": 3,
        "mail_from_address": "webmaster",
        "mail_smtpmode": "php",
        "mail_domain": "trash.net",
        "theme": "trashcloud",
        "lost_password_link": "https:\/\/www.trash.net\/dienste\/passwort-vergessen\/",
        "maintenance": false,
        "htaccess.RewriteBase": "\/"
    }
}

Are you using external storage, if yes which one: local/smb/sftp/... NO

Are you using encryption: NO

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

LDAP configuration (delete this part if not used)

+-------------------------------+---------------------------------------------------------------------+
| Configuration                 |                                                                     |
+-------------------------------+---------------------------------------------------------------------+
| hasMemberOfFilterSupport      |                                                                     |
| hasPagedResultSupport         |                                                                     |
| homeFolderNamingRule          |                                                                     |
| lastJpegPhotoLookup           | 0                                                                   |
| ldapAgentName                 | cn=xxxx                                     |
| ldapAgentPassword             | ***                                                                 |
| ldapAttributesForGroupSearch  |                                                                     |
| ldapAttributesForUserSearch   | cn;uid;mail                                                         |
| ldapBackupHost                |                                                                     |
| ldapBackupPort                |                                                                     |
| ldapBase                      | dc=xxxxx                                                    |
| ldapBaseGroups                | ou=xxxxxxx                                          |
| ldapBaseUsers                 | ou=xxxxxx                                          |
| ldapCacheTTL                  | 600                                                                 |
| ldapConfigurationActive       | 1                                                                   |
| ldapDynamicGroupMemberURL     |                                                                     |
| ldapEmailAttribute            | mail                                                                |
| ldapExperiencedAdmin          | 0                                                                   |
| ldapExpertUUIDGroupAttr       | gidNumber                                                           |
| ldapExpertUUIDUserAttr        |                                                                     |
| ldapExpertUsernameAttr        |                                                                     |
| ldapGroupDisplayName          | cn                                                                  |
| ldapGroupFilter               | (&(|(objectclass=posixGroup))(|(cn=sysadmin)(cn=xxxxxx)(cn=webadm))) |
| ldapGroupFilterGroups         | sysadmin;xxxxx;webadm                                               |
| ldapGroupFilterMode           | 0                                                                   |
| ldapGroupFilterObjectclass    | posixGroup                                                          |
| ldapGroupMemberAssocAttr      | memberUid                                                           |
| ldapHost                      | ldaps://ldap1.local                                                 |
| ldapIgnoreNamingRules         |                                                                     |
| ldapLoginFilter               | (&(|(objectclass=person))(uid=%uid))                                |
| ldapLoginFilterAttributes     |                                                                     |
| ldapLoginFilterEmail          | 0                                                                   |
| ldapLoginFilterMode           | 0                                                                   |
| ldapLoginFilterUsername       | 1                                                                   |
| ldapNestedGroups              | 0                                                                   |
| ldapOverrideMainServer        |                                                                     |
| ldapPagingSize                | 500                                                                 |
| ldapPort                      | 636                                                                 |
| ldapQuotaAttribute            |                                                                     |
| ldapQuotaDefault              |                                                                     |
| ldapTLS                       | 0                                                                   |
| ldapUserDisplayName           | cn                                                                  |
| ldapUserDisplayName2          |                                                                     |
| ldapUserFilter                | (|(objectclass=inetOrgPerson))                                      |
| ldapUserFilterGroups          |                                                                     |
| ldapUserFilterMode            | 0                                                                   |
| ldapUserFilterObjectclass     | inetOrgPerson                                                       |
| ldapUuidGroupAttribute        | auto                                                                |
| ldapUuidUserAttribute         | auto                                                                |
| turnOffCertCheck              | 0                                                                   |
| useMemberOfToDetectMembership | 1                                                                   |
+-------------------------------+---------------------------------------------------------------------+

Client configuration

Browser:

Operating system:

CardDAV-clients:

[Julian1998]

@romanf Which contact app do you use on your iPhone?

[romanf]

@Julian1998 Default build-in Apple iOS 11.4 contact app