No email notifications to attendees when adding to shared calendar

[nolash]

Steps to reproduce

1. User A shares calendar with user B
2. User B creates new event in shared calendar, after adding user A and C as attendees
3. User B creates same event in the personal calendar, after adding user A and C as attendees

Expected behaviour

Both A and C should receive event invite emails for both events

Actual behaviour

A and C only gets event invite emails for the event added in the personal calendar

Server configuration

Operating system:

Linux 2.6.32-042stab093.5

Web server:

Apache/2.4.29 (cPanel)

Database:

mysql Ver 14.14 Distrib 5.6.38, for Linux (x86_64) using EditLine wrapper

PHP version:

PHP 5.6.33
Zend Engine v2.6.0

Nextcloud version: (see Nextcloud admin page)

12.0.4

Updated from an older Nextcloud/ownCloud or fresh install:

Upgrade

Where did you install Nextcloud from:

Official download package

Signing status:

Signing status

$ gpg --verify nextcloud-12.0.4.zip.asc 
gpg: Signature made Mon Dec  4 02:24:57 2017 EST using RSA key ID A724937A
gpg: Good signature from "Nextcloud Security <security@nextcloud.com>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 2880 6A87 8AE4 23A2 8372  792E D758 99B9 A724 937A

sha256 matches.

Technical information
=====================
The following list covers which files have failed the integrity check. Please read
the previous linked documentation to learn more about the errors and how to fix
them.

Results
=======
- core
	- INVALID_HASH
		- .htaccess
	- EXTRA_FILE
		- .htaccess.swp

Raw output
==========
Array
(
    [core] => Array
        (
            [INVALID_HASH] => Array
                (
                    [.htaccess] => Array
                        (
                            [expected] => da8e0075f23227b107fc705aa1b20378107d3a1c195d96ed13e5f4f25c38d6c660aab75be183ae5799a4ff7eae0ea739a14c944430ee8bb9e9a824235aa136eb
                            [current] => c5101bc8cb897f98de4099cbd5687e56ba10e16c292555a5db3e23190cd57c7fbcc0159c434e5b6a82cecf4e571d45ef9bfd57d0c514db4172a444beb7c4e17f
                        )

                )

            [EXTRA_FILE] => Array
                (
                    [.htaccess.swp] => Array
                        (
                            [expected] => 
                            [current] => 6fec34a83ecee2686874acc9eeed5aaa83d0481962aa31b5a45e9edf9a93f321d80ec5915a567e800230bce00da3cf89fbb5d89cac6299ab94cffc0ffcb0344a
                        )

                )

        )

)

(added https rewrite to .htaccess)

List of activated apps:

App list

# sudo -u lashouta php occ app:list
Set-Cookie: ocyxwmimk47l=96nqmlev1vu49ufsppcof1mrd3; path=/; HttpOnly
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: oc_sessionPassphrase=vHu%2FHqqWOsY6O7G%2F%2BwneXX2w8q0s6mCD%2BWWwyRmpeuKTjVa8cgEPRDHGnZGucqu%2BpStIOMat5CMG5X19aHGVslXKyttPQgL7pvKyPgpA3FluJix6QOWR%2BQibaoLrdzxT; path=/; httponly
Content-Security-Policy:default-src 'self'; script-src 'self' 'unsafe-eval' 'nonce-ZkZXME95UnRVQnB3L0Y0TXUvMGNlVjFMdGJxbE9xdUxpdENDbGV1ZWg3Zz06S0NURkEzTTFFeXNmcGd0dDlNaDVDUzBaeGRUallNVHN6THEyOFk3eTY4ND0='; style-src 'self' 'unsafe-inline'; frame-src *; img-src * data: blob:; font-src 'self' data:; media-src *; connect-src *; object-src 'none'; base-uri 'self';
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
X-Robots-Tag: none
X-Download-Options: noopen
X-Permitted-Cross-Domain-Policies: none
Set-Cookie: nc_sameSiteCookielax=true; path=/; httponly;expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=lax
Set-Cookie: nc_sameSiteCookiestrict=true; path=/; httponly;expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=strict
Content-type: text/html; charset=UTF-8

This script can be run from the command line only

(lol)

Nextcloud configuration:

Config report

$CONFIG = array (
  'instanceid' => 'XXXXX',
  'passwordsalt' => 'XXXXX',
  'secret' => 'XXXXX',
  'trusted_domains' => 
  array (
    0 => 'YYYYY',
  ),
  'datadirectory' => 'XXXX/nextcloud/data',
  'overwrite.cli.url' => 'YYYYY',
  'dbtype' => 'mysql',
  'version' => '12.0.4.3',
  'dbname' => 'XXXXX',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'XXXX',
  'dbpassword' => 'XXXX',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 0,
);

Are you using external storage, if yes which one: local/smb/sftp/...

not that I know (hired VPS, duno)

Are you using encryption: yes/no

no

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

Client configuration

Browser:

multiple

Operating system:

multiple

Logs

Web server error log

Nothing notable in logs pertaining to issue.

[georgehrke]

Duplicate of #3830