[Bug]: German translation metadata (PO header) appended to share revocation email body #3830

Describe the bug

When a share is revoked/cancelled, the German notification email contains the raw .po translation file metadata (PO-Header) appended directly to the message body.

This issue does not occur when creating a share, only when revoking one. It seems the translation string for the revocation notice in Transifex accidentally includes or appends the file header.

To Reproduce

1. Set the system or user language to German (de).
2. Create a share for a file/folder to another user.
3. Revoke/cancel the share.
4. Check the received notification email (both Text and HTML views).

Expected behavior

The email should end cleanly after the notice ("...Zugriff über andere Freigaben und/oder Mitgliedschaften in Bereichen."). It should not render the technical PO-Header.

Actual behavior / Screenshots

The email body looks like this:

Hallo [User],

[User] hat die Freigabe für »[Datei]« für Sie aufgehoben.

Auch wenn diese Freigabe widerrufen wurde, haben Sie möglicherweise weiterhin Zugriff über andere Freigaben und/oder Mitgliedschaften in Bereichen.

Project-Id-Version: Report-Msgid-Bugs-To: EMAIL POT-Creation-Date: 2026-09-03 23:16+0000 PO-Revision-Date: 2025-01-27 10:17+0000 Last-Translator: Jannick Kuhr, 2026 Language-Team: German (https://transifex.com) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Language: de Plural-Forms: nplurals=2; plural=(n != 1);

Context

• OpenCloud Version: rolling (Image tag 8.1.0)
• Language: German (de)
• Translation Platform: Transifex