Check situation when city/country are hiddenfields and identityfields at the same time

Human testing is not strictly necessary as the functionality is covered by unit tests. If required, the human testing should focus on following scenarios. No point to provide detailed steps to reproduce as those were already checked obviously. The human testing could be more of exploration style seeking for more places not covered by this patch. Select Country and City as hiddenuserfields fields (Users > Permissions > User policies > Hide user fields) Select Country and City as showuseridentity fields (Users > Permissions > User policies > Show user identity) Check various places where we display list of users, both inside courses and outside courses - such as: Course participants page Group membership UI inside a course Manual enrolment UI inside a course Cohort membership UI outside a course Make sure that depending on the logged user and the permissions: The user needs https://docs.moodle.org/en/Capabilities/moodle/site:viewuseridentity to have the fields Country and City shown as user identifiers on these lists. Without this capability, they should not appear at all. When outside the course, the user also needs to have https://docs.moodle.org/en/Capabilities/moodle/user:viewhiddendetails to see the hiddenCountry and City fields in lists When inside a course, the user also needs to have https://docs.moodle.org/35/en/Capabilities/moodle/course:viewhiddenuserfields to see the Country and City fields in lists Please note that currently, displaying these fields on users profile pages is implemented separately and has not been affected in this issue.