Avoid using Rugged in Gitlab::Git::Wiki#preview_slug
Related to gitaly#643 (closed). I opted to duplicate code from the gem in order to save development time that would've been spent on migrating to Gitaly.
What does this MR do?
Are there points in the code the reviewer needs to double check?
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 Ahmad Sherif