Old contacts are not showing up after upgrading to ownCloud 9.0.1 and Contacts 1.2.0.0

[pbek]

As requested by @DeepDiver1975 in https://github.com/owncloud/contacts/pull/374: I had several hundred contacts before the upgrade to ownCloud 9.0.1 and Contacts 1.2.0.0. After the upgrade they don't show up at the contact page.

Syncing via Dav still works. If I create a new contact on the web interface in my old address book Contacts it doesn't show up on the web interface neither. Although it is available via Dav.

Then I created a new address book Test on the web-interface. I could add a new contact there and it showed up on the web-interface.

Expected behaviour

My old contacts load.

Actual behaviour

They don't load.

Server configuration

Operating system: Debian 7.10

Web server: Apache

Database: MySQL

PHP version: 5.6.20

ownCloud version: 9.0.1

Contacts version: 1.2.0.0

Updated from an older ownCloud or fresh install: Update from 8.x

Signing status (ownCloud 9.0 and above):

No errors have been found.

List of activated apps:

Enabled:
  - activity: 2.2.1
  - bookmarks: 0.8
  - calendar: 1.1
  - comments: 0.2
  - contacts: 1.2.0.0
  - dav: 0.1.6
  - external: 1.2
  - federatedfilesharing: 0.1.0
  - federation: 0.0.4
  - files: 1.4.4
  - files_external: 0.5.2
  - files_pdfviewer: 0.8
  - files_sharing: 0.9.1
  - files_texteditor: 2.1
  - files_trashbin: 0.8.0
  - files_versions: 1.2.0
  - files_videoplayer: 0.9.8
  - firstrunwizard: 1.1
  - gallery: 14.5.0
  - news: 8.7.1
  - notes: 2.0.1
  - notifications: 0.2.3
  - ownbackup: 0.3.8
  - provisioning_api: 0.4.1
  - qownnotesapi: 0.4.3
  - systemtags: 0.2
  - tasks: 0.9.0
  - templateeditor: 0.1
  - updatenotification: 0.1.0
Disabled:
  - encryption
  - user_external
  - user_ldap

config.php:

$CONFIG = array (
  'instanceid' => 'XXXX',
  'passwordsalt' => 'XXXX',
  'trusted_domains' => 
  array (
    0 => 'XXX.XXX.XXXX',
  ),
  'datadirectory' => '/XXXX/data',
  'dbtype' => 'mysql',
  'version' => '9.0.1.3',
  'dbname' => 'XXXX',
  'dbhost' => 'localhost',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'owncloud',
  'dbpassword' => 'XXX',
  'installed' => true,
  'forcessl' => true,
  'mail_from_address' => 'XXX',
  'mail_smtpmode' => 'php',
  'mail_domain' => 'XXXX',
  'theme' => '',
  'maintenance' => false,
  'secret' => 'XXXX',
  'appstoreenabled' => true,
  'appstoreurl' => 'https://api.owncloud.com/v1',
  'appstore.experimental.enabled' => true,
  'loglevel' => 2,
  'trashbin_retention_obligation' => 'auto',
  'updatechecker' => false,
);

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

Are you using encryption: no

Client configuration

Browser: Google Chrome Version 50.0.2661.86 (64-bit)

Operating system: KDE Neon 16.04

Logs

Web server error log

nothing in the error.log, this from the access log (I removed the requests for assets):

178.191.x.x - - [25/Apr/2016:07:36:13 +0200] "PROPFIND /remote.php/dav/addressbooks HTTP/1.1" 207 1699 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:13 +0200] "PROPFIND /remote.php/dav/principals/users/patrizio/ HTTP/1.1" 207 1716 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:13 +0200] "PROPFIND /remote.php/dav/addressbooks/users/patrizio/ HTTP/1.1" 207 2984 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:13 +0200] "PROPFIND /remote.php/dav/addressbooks/users/patrizio/Test/ HTTP/1.1" 207 3528 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:13 +0200] "PROPFIND /remote.php/dav/addressbooks/users/patrizio/contacts/ HTTP/1.1" 207 586982 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:15 +0200] "PROPFIND /remote.php/dav/addressbooks/users/patrizio/ HTTP/1.1" 207 1611 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:15 +0200] "REPORT /remote.php/dav/addressbooks/users/patrizio/Test/ HTTP/1.1" 207 1662 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:15 +0200] "PROPFIND /remote.php/dav/addressbooks/users/patrizio/ HTTP/1.1" 207 1611 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"
178.191.x.x - - [25/Apr/2016:07:36:15 +0200] "REPORT /remote.php/dav/addressbooks/users/patrizio/contacts/ HTTP/1.1" 207 10115263 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36"

ownCloud log (data/owncloud.log)

no log entries were added by the call to show all contacts

Browser log

just a Failed to parse SourceMap