No permissions for shares from group folder when used with `GroupQuota` app

[vsaleksandrov]

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Steps to reproduce

1. Create group folder for group with user A
2. Login as user A
3. Share access to two different folders within the group folder for a user B who does not have access to the group folder
4. Login as User B.

Expected behaviour

Folder 1 - accessible, Folder - 2 accessible.

Actual behaviour

Folder 1 - accessible, but Folder - 2 visible but is not accessible - message is: You does not have permission.

Server configuration

Operating system: Ubuntu 20.04

Web server: Nginx + Apache

Database: MariaDB 10.3.29

PHP version: 7.4.3

Nextcloud version: (see Nextcloud admin page) 21.0.3

Group folders version: 9.0.2

Updated from an older Nextcloud/ownCloud or fresh install: 20

Where did you install Nextcloud from: Archive

Are you using external storage, if yes which one: local/s3/smb/sftp/... smb

Are you using encryption: yes/no no

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

Client configuration

Browser: Chrome

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) ... ```

[vsaleksandrov]

The problem is related to the installed GroupQuota application, without it everything is ok.