Cannot download some artifacts from Jenkins

Originally created by @anonym on #11866 (Redmine)

It seems to affect multiple .mkv files at least, for instance: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/530/artifact/build-artifacts/02%3A47%3A38_VirtualBox_guest_modules_are_available.mkv

With Tor Browser the download just aborts after 32768 bytes. With another browser at 65230 bytes. The difference may just be in how the browser allocate data for .part files.

This is currently making analyzing artifacts for tails/tails#10502 hard for me.

Related issues

• Related to tails/sysadmin#11870
• Blocks tails/tails#10502