I do not how that happened (perhaps it was changed?), I am almost certain I got this right as I remember double checking the post after I submitted. I do not agree entirely with the post linked to, the post above is what I intended to submit.
<link
rel="canonical"
href="https://frutigeraeroarchive.org/blog/posts/23_07_2025"
/>
That confuses the server of HN. If this is your page, fix the html a and repost the new link. If this is not your page, send an email to hn@ycombinator.com explaining the problem so dang/tomhow can tell you what to do.