[QA] repeated users are only partially filtered when sharing with multiple users

[jnweiger]

Seen while testing #40155 with core 10.11.0-rc.1

In a system, where admin, user1, and user2 exist: User admin tries to share with "user1, user2, user1, user2" The duplicate user2 is recognized:

Expected behaviour:

• The duplicate user1 is also recognized
• the popup never contains duplicates.

The issue is only about the preview in the popup. No errors occur (the duplicate is silently ignored) when submitting the list.

[phil-davis]

That is fixable - PR #40347

[phil-davis]

@jnweiger fixed by #40347 - please try it and close here if it works. Whenever the next 10.11.0 tarbalss are generated, this will get included.

[grgprarup]

This issue has been fixed and the current behavior is