[Bug]: "Search globally" in share settings broken

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

When clicking "Search globally" in the share settings it looks like a recipient was selected which is wrong and the UI also doesn't let you do anything. The global search itself is probably also broken then.

Steps to reproduce

1. Create a file
2. Open the sharing sidebar
3. Enter something in the recipient field
4. Click "Search globally"

Expected behavior

The real global search should be started and it should show the UI as if a recipient was selected.

Nextcloud Server version

master

Operating system

Other

PHP engine version

PHP 8.3

Web server

Other

Database engine version

SQlite

Is this bug present after an update or on a fresh install?

Fresh Nextcloud Server install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

CC @Fenn-CS

No file or test is named. Start by reproducing the issue from the sharing sidebar's recipient field and inspect the "Search globally" entry point; done means global search starts and the UI behaves as though a recipient was selected.