In T362139#9731396, @Wargo wrote:

In T362139#9731305, @Msz2001 wrote:

In T362139#9724671, @matmarex wrote:

I'll be honest, I'm not sure how it's supposed to work. But I think I managed to restore how it worked.

I set up demo wikis to compare:
Before the bug: https://patchdemo.wmflabs.org/wikis/777f1587e8/w/index.php?title=Test1&action=edit&undoafter=152&undo=153
Current buggy version: https://patchdemo.wmflabs.org/wikis/1010d4fce1/w/index.php?title=Test1&action=edit&undoafter=152&undo=153
After the fix: https://patchdemo.wmflabs.org/wikis/83a92cb3f0/w/index.php?title=Test1&action=edit&undoafter=152&undo=153

If someone here feels like they understand it, I'd appreciate if you could test on those demo wikis as well.

@matmarex How can we test this? Do we have to get rights on these patchdemo wikis? (AFAIK, the accept checkbox does not appear if one does not have editor rights).

Login: Patch Demo
P4ssw0rd: patchdemo1

Thanks! Versions "Before the bug" and "After the fix" look the same, so it seems that the matmarex's fix works correctly.

Thanks a lot!

Thanks for corrections to my request. However, I am a little disappointed that such a simple change took so long. When will there be a chance to complete this task?

Unfortunately, as for now, many books issued in Poland are not covered. However, @Nux informed me that he had already added the Polish 'National Library' database, which, he hopes, will be included in the next implementation.

It seems to be working smoothly again. Is it the magic of the limit?

In T227415#5311725, @Aklapper wrote:

As no example URL was provided, I pasted https://ncbi.nlm.nih.gov/ - https://en.wikipedia.org/api/rest_v1/data/citation/mediawiki/https://ncbi.nlm.nih.gov/?action=query&format=json provides an HTTP 400 error.