Bugfix.notify custom participants
What does this MR do?
Fixes #36610 (closed) by actually using the :participating
type. Additionally, factors out a method that reflects more or less directly what is specified in our documentation.
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Why was this MR needed?
Screenshots (if relevant)
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 UX -
Has been reviewed by Frontend -
Has been reviewed by Backend -
Has been reviewed by Database
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Conform by the merge request performance guides -
Conform by the style guides -
Squashed related commits together
What are the relevant issue numbers?
Edited by username-removed-28993