add tests for unbind with scope
add tests for unbind with scope

kentcdodds/keymaster,MOODOO-SH/keymaster,RubaXa/keymaster,madrobby/keymaster,harvesthq/keymaster,MOODOO-SH/keymaster,pandoraui/keymaster,quizlet/keymaster,relax/keymaster,greyhwndz/keymaster,madrobby/keymaster,nelsonic/keymaster,atomic-app/keymaster,relax/keymaster,greyhwndz/keymaster,pandoraui/keymaster,atomic-app/keymaster,quizlet/keymaster,nelsonic/keymaster