Moderation update overwrites previous fields

[GMishx]

Description

When a user modifies a project/component updating field "F1", a moderation request is created. When the same user modifies the same project/component but updates field "F2", the moderation request is updated and the updates for field "F1" gets lost.

The logic of ModerationRequestGenerator::setAdditionsAndDeletions() seems to incorrect. Upon a PATCH request, the ModerationDatabaseHandler::createRequest() gets the latest moderation request by the user and tries to update it with the new fields. However, in the update process, the old field gets overwritten.

How to reproduce

1. With a non-moderator user, modify a project's description.
2. Check the created moderation request.
3. With the same user, modify the same project's version.
4. Check the moderation request, the update of "description" field does not exists anymore and is overwritten with "version" update.

Versions

• Last commit id on main: c8b2756