This is not a bug, but a feature wish: Would it be feasible to support the move plugin (https://www.dokuwiki.org/plugin:move) when moving pages and namespaces? Currently a page or namespace rename/move deletes the old pages and recreates them in a new location, hereby recreating all "do" tasks as "open" and leaving the previous status and completion messages behind.

We found that out after a major reorganization of our Wiki and now we will have to re-check hundreds of now open tasks :-}. Unfortunately we have now lost the old completion messages.

The same wish was also posted to the do plugin issue tracker, where I was referred to the "do" plugin:

I would say this is more suitable to be implemented in do plugin, and move plugin has an event API: https://www.dokuwiki.org/plugin:move#for_plugin_authors

(from michitux/dokuwiki-plugin-move#180)