Some links to attachments are not clickable

[tijmenbaarda]

On the review page, these attachment links that are marked as "new" are not clickable (browser: Chrome):

When opening the links manually (by copying and pasting the URL), a server error occurs.

URL: https://fetc.tst.hum.uu.nl/reviews/show/11/

[tijmenbaarda]

The server errors also occur on the attachment page: https://fetc.tst.hum.uu.nl/reviews/attachments/12/

Sentry link: https://uu-cdh.sentry.io/issues/15286203/?referrer=alert_email&alert_type=email&alert_timestamp=1735049819011&alert_rule_id=69106&notification_uuid=27711fd4-aa06-46ff-83d0-732d61401269&environment=major_4

[miggol]

This was a combination of non-existing files and the download="filename.pdf" attribute on the link, which results in a click doing nothing.

Non-existing files should be fixed with #832 and a hotfix was put in major/4 for the latter part of the problem.