Tag artifacts link stopped working
Summary
Artifacts can no longer be downloaded via Project repo -> "Repository" -> "Tags" -> Cloud button related to that Tag and artifacts download. Same artifacts are only available via pipelines (and jobs) page.
Steps to reproduce
Unknown.
Example Project
None
What is the current bug behavior?
We publish internal releases (binaries) via Tag artifacts link:
.gitlab-ci.yml:
...
variables:
ARTIFACTS_JOB_NAME: "rel"
BINARIES_LINK: "${CI_PROJECT_URL}/-/jobs/artifacts/${CI_COMMIT_TAG}/download?job=${ARTIFACTS_JOB_NAME}"
...
We started this not so long ago. We have few links that are published this way. URL is the same as in Project repo -> "Repository" -> "Tags" -> Cloud button related to that Tag and artifacts download.
Everything was working perfectly up until now, when the oldest link (created 6 days ago) stopped working. It is also not working anymore from Gitlab Web: Project repo -> "Repository" -> "Tags" -> Cloud button related to that Tag and artifacts download.
The very same artifacts can still be successfully downloaded form pipelines and jobs pages.
Also, API link works for logged in users:
https://gitlab.XXXXXXX.XX/api/v4/projects/1/jobs/artifacts/_TAG_NAME_HERE_/download?job=rel
Artifacts expiration: 100 years (defined in .yml file)
What is the expected correct behavior?
Artifacts links from tags page must work as long as related artifacts are present.
Relevant logs and/or screenshots
When pressing artifacts download button from Tags menu:

Gitlab Version
12.2.1-ee (e4a8b6c7)
