Fix click on commit feature.
Fix click on commit feature.

Fixes: https://github.com/ruby-bench/ruby-bench-web/issues/40.

tgxworld/ruby-bench-web,ruby-bench/ruby-bench-web,ruby-bench/ruby-bench-web,bmarkons/ruby-bench-web,tgxworld/ruby-bench-web,klgilbert/ruby-bench-web,bmarkons/ruby-bench-web,tgxworld/ruby-bench-web,treble37/ruby-bench-web,klgilbert/ruby-bench-web,klgilbert/ruby-bench-web,ruby-bench/ruby-bench-web,hanmd82/ruby-bench-web,treble37/ruby-bench-web,hanmd82/ruby-bench-web,bmarkons/ruby-bench-web,hanmd82/ruby-bench-web,treble37/ruby-bench-web