As screenshots shows the URL showed are pretty long. Didn't notice this before, seems like a little new bug.
Using github as repository browser with the https URL for my github project, and the repository url is the one shown in the picture.
Refer to JENKINS-15051 for a duplicate of this bug report.
With multiple repositories, it quickly pushes the build related information completely off screen.
Refer to http://www.flickr.com/photos/markewaite/7956476354/ for an example with 3 repositories.
I submitted a pull request https://github.com/jenkinsci/git-plugin/pull/95 with a fix for this problem.
Code changed in jenkins
User: Mark Waite
Fix JENKINS-15048 - shorten build data display name
Longer display name moves crucial data off screen to the right.
+1 to this problem, by the way, since I noticed it today. Sounds like the fix will be in the next release.
Yes, the fix should be in the next release of the git plugin, since the pull request was accepted and merged to the plugin source.