Just got two more notifications, https://sv.wikipedia.org/w/index.php?title=Pojkar,_pojkar,_pojkar&diff=40881286&oldid=prev and https://sv.wikipedia.org/w/index.php?title=Musik_f%C3%B6r_miljon%C3%A4rer&diff=40881288&oldid=prev. Both of them wrong, obviously.

Two more today: https://sv.wikipedia.org/w/index.php?title=K%C3%A4rlekens_t%C3%B6rst&diff=40892428&oldid=prev and https://sv.wikipedia.org/w/index.php?title=D%C3%B6d_stj%C3%A4rna&diff=40892438&oldid=prev. The first one is actually correct. The second one isn't.

From a quick glance at a few examples, I believe these notifications are all related to this edit: https://sv.wikipedia.org/w/index.php?title=Mall:Eldkvarn&diff=40871635&oldid=40820733 where the link to [[Kärlekens tunga]] was added in the navbox. All the notifications are because the pages which contain the navbox are being re-cached due to an edit, which updates the database's "whatlinkshere" table for [[Kärlekens tunga]].
Note: The software isn't able to distinguish where the links are coming from (from plain [[links]] within each article, to transcluded templates or <onlyinclude> sections from elsewhere), it's just a plain listing of page-names.

See "Use-case #3" in T46787: Allow excluding pages from the page links notifications (which I suggest merging this task into).

Ah, ok! That makes perfect sense. Then the issue is solved on my part.