Ca't remove tag written in Cyrillic

Hello!

I accidentally created tag written in Cyrillic. It can't be removed. I checked that the tag written in English is successfully removed via web-interface, so it is not permission issue.

When I click the remove button (red):

I see that in background the REST request is processed (I masked the sensitive information):

Request URL: https://{URL}/{GROUP}/{PROJECT}/tags/%D0%BA%D1%83
Request Method: DELETE
Status Code: 503 
Remote Address: 172.20.9.238:443
Referrer Policy: origin-when-cross-origin

I tried to make via web-interface the tag with Cyrillic letters and got "500 Whoops, something went wrong on our end." (The project is https://gitlab.com/gecube/ololo/tags - on cloud GitLab)

So it looks like that the Cyrillic tag appears when you enter console git command, write the tag and push it to remote repo.

Please check that the issue arises.