Build information link is showing empty in case of CI didn't sent a build-name to REST endpoint

Issue Summary

After 7.0 the build information screen on commits and pull request has inconsistent appearance. Previously if the build-name was not sent to REST endpoint it would be showing build-key.

Steps to Reproduce

1. Create a build or sent the JSON file to Build status REST endpoint for a certain commit.
2. Create another build with empty value for build-name to the same commit.

Expected Results

• The first build is showing build-name with a link to a build
• The second build is showing build-key with a link to a build

Actual Results

• The first build is showing build-name with a link to a build
• The second build has no title in HTML tag so empty row
  

The behavior is inconsistent across different screens: it shows build-key with a link on the pull requests page (i.e projects/DEMO/repos/test/pull-requests) and empty row if you open build information from the pull request overview

Workaround

Make sure that all builds updates sent by your CI has both build-name and build-key