**Backport of** https://codeberg.org/forgejo/forgejo/pulls/8258, cherry picked from commit cee2aae4ca
Manual adjustments:
- rename the migration file from `v36` to `v29`
- added the `//nolint:revive`
---
Closes#8119, follow-up of #8234 (**backported in #8237**)
## Testing
- go to a commit before #8234 (e.g.
285f66b782)
- create 3 repositories
- save the wiki settings of the second, without any change
- set the wiki of the third to be globally writable
- verify the `default_permissions` column in the database, of the unit
`5`: 0, 2, 3
- stop Forgejo, switch to this PR and start Forgejo
- verify that the logs writes `Migration[35]: Fix wiki unit default
permission`
- verify the `default_permissions` column in the database, of the unit
`5`: 0, 0, 3
Before:
After:
- [x] I did not document these changes and I do not expect someone else
to do it.
- [x] I do not want this change to show in the release notes.
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8445
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>
Co-authored-by: oliverpool <git@olivier.pfad.fr>
Co-committed-by: oliverpool <git@olivier.pfad.fr>
094eb89b5e