Fix wiki restore
Seems 4a5044e3 only fixed git repos restore. This MR provides the same functionality that was introduced in the aforementioned commit, but for wikis.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Seems 4a5044e3 only fixed git repos restore. This MR provides the same functionality that was introduced in the aforementioned commit, but for wikis.