Unable to select editor in NC 18 RC2 or NC 18.0.0

Steps to reproduce

Using NC17 with both Owncloud and Collabora
- default editor (click on eg Test2.docx) is OnlyOffice
- right-click or clicking on '...' in file list includes 'Edit with Collabora' option
Upgrade to NC18R2 using web updater

Expected behaviour

Unchanged behavior:

default editor (if I click on eg "Test2.docx") should be OnlyOffice
the "..." menu in the file list should still include "Edit in Collabora" as an option

Actual behaviour

Both editors still work if specified in the URL, BUT
- the default editor (if I click on eg Test2.docx) is now Collabora
- OnlyOffice still opens if I use a URL that was saved from before the upgrade: https://nextcloud-server/apps/onlyoffice/566480?filePath=%2FTemp%2FTest2.docx

Server configuration

Operating system:

# cat /etc/os-release 
NAME="Ubuntu"
VERSION="18.04.3 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.3 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

Web server:

# apt-cache policy apache2
apache2:
  Installed: 2.4.29-1ubuntu4.11
  Candidate: 2.4.29-1ubuntu4.11
  Version table:
 *** 2.4.29-1ubuntu4.11 500
        500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
        100 /var/lib/dpkg/status
     2.4.29-1ubuntu4 500
        500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

Database:

Type: mysql
Version: 5.7.28
Size: 197 MB

PHP version:

Version: 7.3.13
Memory Limit: 512 MB
Max Execution Time: 3600
Upload max size: 512 MB

Nextcloud version: (see Nextcloud admin page)

occ status
  - installed: true
  - version: 18.0.0.10
  - versionstring: 18.0.0
  - edition:

Updated from an older Nextcloud/ownCloud or fresh install:

updated continuously since Nextcloud v10.0.1 in 2016

Where did you install Nextcloud from:

Latest update to NC 18 RC2 using the 'beta' channel of the updater.
Then updated using the .zip file for v18.0.0.10 using the instructions at https://docs.nextcloud.com/server/18/admin_manual/maintenance/manual_upgrade.html

Signing status:

Signing status

``` No errors have been found. ```

List of activated apps:

App list

``` Enabled: - accessibility: 1.4.0 - activity: 2.11.0 - audioplayer: 2.9.0 - bookmarks: 2.3.4 - calendar: 2.0.0 - cloud_federation_api: 1.1.0 - comments: 1.8.0 - dav: 1.14.0 - deck: 0.8.0 - federatedfilesharing: 1.8.0 - federation: 1.8.0 - files: 1.13.1 - files_external: 1.9.0 - files_markdown: 2.2.0 - files_pdfviewer: 1.7.0 - files_sharing: 1.10.1 - files_trashbin: 1.8.0 - files_versions: 1.11.0 - files_videoplayer: 1.7.0 - firstrunwizard: 2.7.0 - groupfolders: 6.0.0 - imap_auth_aicr: 0.1.1 - logreader: 2.3.0 - lookup_server_connector: 1.6.0 - mail: 1.0.0 - music: 0.12.1 - nextcloud_announcements: 1.7.0 - notes: 3.1.1 - notifications: 2.6.0 - oauth2: 1.6.0 - onlyoffice: 4.1.1 - password_policy: 1.8.0 - photos: 1.0.0 - previewgenerator: 2.2.0 - privacy: 1.2.0 - provisioning_api: 1.8.0 - recommendations: 0.6.0 - richdocuments: 3.5.1 - serverinfo: 1.8.0 - settings: 1.0.0 - sharebymail: 1.8.0 - sociallogin: 2.4.2 - support: 1.1.0 - survey_client: 1.6.0 - systemtags: 1.8.0 - tasks: 0.11.3 - text: 2.0.0 - theming: 1.9.0 - twofactor_backupcodes: 1.7.0 - twofactor_nextcloud_notification: 2.2.0 - twofactor_totp: 4.1.2 - updatenotification: 1.8.0 - viewer: 1.2.0 - workflowengine: 2.0.0 Disabled: - admin_audit - announcementcenter - apporder - bruteforcesettings - contacts - encryption - files_automatedtagging - files_retention - files_rightclick - imap_auth - impersonate - passman - polls - user_ldap - user_saml - workflow_script ```

Nextcloud configuration:

Config report

``` { "system": { "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": [ "192.168.200.167", "cloud.mmsionline.us" ], "datadirectory": "***REMOVED SENSITIVE VALUE***", "overwrite.cli.url": "https:\/\/cloud.mmsionline.us\/", "htaccess.RewriteBase": "\/", "dbtype": "mysql", "version": "18.0.0.10", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "logtimezone": "UTC", "installed": true, "memcache.local": "\\OC\\Memcache\\APCu", "loglevel": 2, "log_rotate_size": 104857600, "logfile": "\/var\/www\/nc-log\/nextcloud.log", "apps_paths": [ { "path": "\/var\/www\/nextcloud\/apps", "url": "\/apps", "writable": true }, { "path": "\/var\/www\/nextcloud\/apps-local", "url": "\/apps-local", "writable": true } ], "mail_smtpmode": "smtp", "mail_smtpsecure": "ssl", "mail_from_address": "***REMOVED SENSITIVE VALUE***", "mail_domain": "***REMOVED SENSITIVE VALUE***", "mail_smtpauthtype": "PLAIN", "mail_smtpauth": 1, "mail_smtphost": "***REMOVED SENSITIVE VALUE***", "mail_smtpport": "465", "mail_smtpname": "***REMOVED SENSITIVE VALUE***", "mail_smtppassword": "***REMOVED SENSITIVE VALUE***", "preview_max_scale_factor": 1, "enabledPreviewProviders": [ "OC\\Preview\\PNG", "OC\\Preview\\JPEG", "OC\\Preview\\GIF", "OC\\Preview\\HEIC", "OC\\Preview\\BMP", "OC\\Preview\\XBitmap", "OC\\Preview\\MP3", "OC\\Preview\\TXT", "OC\\Preview\\MarkDown" ], "asset-pipline.enabled": true, "user_backends": [ { "class": "OC_IMAP_Auth_AICR", "arguments": [ "{mail06.aicr.org:993\/imap\/ssl\/novalidate-cert\/notls\/readonly}" ] } ], "maintenance": false, "theme": "", "updater.release.channel": "stable", "appcodechecker": true, "twofactor_enforced": "true", "twofactor_enforced_groups": [ "admin" ], "twofactor_enforced_excluded_groups": [], "mysql.utf8mb4": true, "app_install_overwrite": [ "passman", "imap_auth_aicr", "issuetemplate" ], "onlyoffice": { "verify_peer_off": true }, "updater.secret": "***REMOVED SENSITIVE VALUE***" } } ```

Are you using external storage, if yes which one: local/smb/sftp/... My nextcloud data is stored in an NFS share that is being mounted by the server OS at boot.

Are you using encryption: yes/no No

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/... imap_auth_aicr - a customized copy of user_external from before the last major refactoring. Disabling this app does not affect the issue I am reporting.

LDAP configuration (delete this part if not used)

LDAP config

``` With access to your command line run e.g.: sudo -u www-data php occ ldap:show-config from within your Nextcloud installation folder Without access to your command line download the data/owncloud.db to your local computer or access your SQL server remotely and run the select query: SELECT * FROM `oc_appconfig` WHERE `appid` = 'user_ldap'; Eventually replace sensitive data as the name/IP-address of your LDAP server or groups. ```

Client configuration

Browser:

Operating system:

Logs

Web server error log

``` Insert your webserver log here ```

Nextcloud log (data/nextcloud.log)

Nextcloud log

``` Insert your Nextcloud log here ```

Browser log

``` Insert your browser log here, this could for example include: a) The javascript console log b) The network log c) ... ```

nextcloud / server