Creating a tag with spaces returns a vague error
Summary
Tag names don't accept spaces, we should either:
- Make this clear to users in the error message
- Auto snakeize the tag name like we do with project names (ie "a test tag" -> "a-test-tag")
Steps to reproduce
- Navigate to the new tag form: https://staging.gitlab.com/gitlab-org/gitlab/-/tags/new
- Specify a tag name with spaces
- Submit