Additional spaces are added to Project Topics containing a capital letter

Summary

Project topics containing a capital letter are displayed with an additional space. Example: TestNoSpace is displayed Test No Space.

Steps to reproduce

Add a TestNoSpace topic to a project, and navigate back to the main project page. Check the displayed topic and see the additional spaces.

Example Project

https://gitlab.com/mgoerens/test_ci

What is the current bug behavior?

Additional space is displayed. This doesn't change the search when one clicks on the topic, but adds confusion to the reader.

Example: Test No Space

What is the expected correct behavior?

No space should be displayed.

Example: TestNoSpace

Relevant logs and/or screenshots

Clipboard_-_September_30__2019_10_45_AM

Output of checks

This bug happens on GitLab.com

Results of GitLab environment info

Expand for output related to GitLab environment info 
(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:env:info)


(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production)

Results of GitLab application Check

Expand for output related to the GitLab application check 
(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)


(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)


(we will only investigate if the tests are passing)

Possible fixes