Ctrl-click doesn't work on some tabs/links

[s-edwards]

If you Ctrl-click (as in, "open link in a new tab" on the code/description/grades links for an assignment, the desired page does load in a new tab ... but the original page produces an error. From an admin account, the error is:

Exception

undefined method `full_label' for nil:NilClass

Backtrace

/app/views/home/course_staff.html.haml:15:in _app_views_home_course_staff_html_haml__3244369056582182632_46397100' /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/benchmark.rb:295:inrealtime'
/app/controllers/home_controller.rb:60:in block (2 levels) in course_staff' /app/controllers/home_controller.rb:59:incourse_staff'
/app/controllers/home_controller.rb:28:in course' <internal:prelude>:10:insynchronize'