When reviewing pages by API you can get in conflict with other users reviewing pages using the web frontend.

You can't see via the API that pages are being reviewed as you would see that in the web frontend. You can't stay out of the way of other users. This causes doubled work and edit conflicts.

To avoid that we need means
– to detect a page being reviewed (which could be implemented as a filter to list=oldreviewedpages and/or by checking via prop=info (the latter should also return true if the page was delisted)) and
– to mark a page as being reviewed.

Version: unspecified
Severity: enhancement