Fix acceptance of username for Mattermost service update
requested to merge markglenfletcher/gitlab-ce:39895-cant-set-mattermost-username-channel-from-api into master
What does this MR do?
Fix acceptance of username for Mattermost service update via the API
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
Please see #39895 (closed)
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 - [] Internationalization required/considered
What are the relevant issue numbers?
Closes #39895 (closed)
Edited by Mark Fletcher