I5682 follow up - fixing test (#5931)
I5682 follow up - fixing test (#5931)

fixes #5932 

addressing this comment here:

https://github.com/mozilla/addons-frontend/pull/5903#discussion_r209976880
kumar303/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,kumar303/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,tsl143/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,mozilla/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend