Topic on Talk:Edit Review Improvements/New filters for edit review

I have been using the watchlist filters for a while in beta and have noticed a bug while browsing through diff views. I am using the "unseen changes" filter. Normally, when a diff from the watchlist is viewed and then I back into the watchlist, all the more recent diffs for that page are still showing on the watchlist. However, if I load a different diff while I am in diff view and then back into the watchlist, all edits for that page are gone. This happens even if the diffs I viewed did not include the current version. It happens even if I go backwards into the history rather than forwards.

Monobooks/Firefox/Windows 10.

Sorry for the late reply.

I'm not sure to understand the process you use. Can you describe it again with steps I can reproduce?

Thanks!

• In Wikipedia:Preferences:Watchlist check "Expand watchlist to show all changes"
• Save preferences
• Load watchlist
• Clear all filters
• In filter changes:
  • Check "unseen changes"
  • Check "page edits"
• You probably don't need these, but to get the exact filter I am using:
  • Check "Logged actions"
  • Check "Page creations"
  • Check "Wikidata edits"
• Find a page on the watchlist with at least three edits displayed
• Click on the "diff" for the second most recent edit (edit 2)
• Click on "Previous edit" to go back to edit 3
• Reload the watchlist (or use "back" button)

Expected result: edits 2 and 3 are no longer displayed on watchlist. Edit 1 is displayed on watchlist.

Actual result: No edits for that page are displayed. If there have been a lot of edits to the page, many edits can be "lost". For instance, starting with the diff at edit 21 will "lose" 20 other edits from the watchlist.