Adjust 404's for LegacyDiffNote discussion rendering
What does this MR do?
Solves #44295 (closed). Further explanation about the issue can be found on https://gitlab.com/gitlab-org/gitlab-ce/issues/44295#note_66706307.
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added -
Tests added for this feature/bug - Review
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Has been reviewed by Backend
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Conform by the merge request performance guides -
Conform by the style guides -
Squashed related commits together -
Internationalization required/considered -
End-to-end tests pass ( package-and-qa
manual pipeline job)
What are the relevant issue numbers?
Closes #44295 (closed)
Edited by Oswaldo Ferreira