@dom_walden I've seen behaviour like this when I was writing the code, but I don't seem to be able to reproduce it now on beta

What I'm doing:

• go to https://commons.wikimedia.beta.wmcloud.org/wiki/Special:EditWatchlist
• select namespace File from the dropdown
• click "last" in the pagination
• click the checkbox beside the last item in the list
• click "remove"

... and the item gets removed from the list. It's the same if I don't select the namespace. FWIW I have 106 items in my watchlist

In T407853#11302934, @Cparle wrote:

... and the item gets removed from the list. It's the same if I don't select the namespace. FWIW I have 106 items in my watchlist

It might be that this bug only happens if the namespace of the item you are trying to remove does not exist in the first page of results, e.g. the first page of results only shows Main namespace pages and you try to delete a page from the File namespace.

In T407853#11378778, @dom_walden wrote:

In T407853#11302934, @Cparle wrote:

... and the item gets removed from the list. It's the same if I don't select the namespace. FWIW I have 106 items in my watchlist

It might be that this bug only happens if the namespace of the item you are trying to remove does not exist in the first page of results, e.g. the first page of results only shows Main namespace pages and you try to delete a page from the File namespace.

I tried this and was able to remove a page from a namespace that only started showing up on the 2nd page.

I can confirm the behaviour in T410247 - I click 'last' and try to remove a page and it just refreshes Special:EditWatchlist, taking me back to the first page. This also happens if I click 'Next X' until reaching the last page.

The same happens if I switch the number of entries shown to 500 (on a 261 page watchlist), removing the pagination UI elements. Attempting to remove an item simply refreshes the page and returns me to default pagination settings.

If I filter for a namespace, leaving a single page in my view, it gets removed successfully.

If it helps, so far with testing this the cases where I'm not on the first page of results and it works an offset value is sent in the payload, and where it fails the offset value is missing

did not work:

title: Special:EditWatchlist
wpTitlesNs6[]: File:Page b6
wpEditToken: 856f4640f46e57f58e4d44a99a995386693a9789+\
offset:

worked:

title: Special:EditWatchlist
wpTitlesNs6[]: File:Page 0e
wpEditToken: 8232fe15e97b88c3ac091c628687908b693a9774+\
offset: 0|Page_9a

I've also had mixed results with showing 500 entries/clicking last/getting to the last page by clicking next 50

I still can't reproduce this consistently, and the construction of the form is changed drastically in T411596, so gonna put this to one side for now and see if the patch for T411596 fixes it

Moving back into QA as I can't reproduce

In T407853#11378859, @Samwalton9-WMF wrote:

I can confirm the behaviour in T410247 - I click 'last' and try to remove a page and it just refreshes Special:EditWatchlist, taking me back to the first page. This also happens if I click 'Next X' until reaching the last page.

The same happens if I switch the number of entries shown to 500 (on a 261 page watchlist), removing the pagination UI elements. Attempting to remove an item simply refreshes the page and returns me to default pagination settings.

I've just tested both of these cases and neither is happening to me now, pages are removed successfully - I think we can close this out.

@Cparle Confirmed in Special:EditWatchlist: pages can be removed, as seen in the videos below. Based on the above comments, I also can not reproduce as seen in the videos below. I will mark this task as Resolved. We can reopen this task if the error pops up again. Thanks for all your work!

Test Result - Beta

Status: ✅ PASS
Environment: Beta
OS: macOS Tahoe 26.2
Browser: Chrome 143
Device: MBA
Emulated Device: NA

Test Artifact(s): Screenshots or screen recording of Special:EditWatchlist before and after removal

Test Steps

Test Case 1: Ensure watched pages can be removed from the last page of Special:EditWatchlist

1. Navigate to Special:EditWatchlist.
2. Use pagination controls to navigate to the last page of watched items.
3. Select the checkbox next to a watched page.
4. Click the "Remove titles" button.
5. Observe the resulting page or confirmation state.
6. ✅ AC1: The selected page is removed from the watchlist and the UI reflects the removal instead of reloading with no visible change.