defect
If you export a help page as a ZIP in the "Administration > Development > Help Editor" view, change it and then import it again from the ZIP, the change is not reversed. In other words, the import does not seem to work (correctly).
This is the case if you try to do this with a help page provided by TopLogic (within the administration manual, user manual, ...).
If you try to do the same with a help page provided by your own application, the help page into which you try to import the help disappears completely instead of being filled with the exported content.