Sending emails from participants list broken when messaging is disabled

Run included Behat test. Also, try sending email from 1-any number of participants and verify that email gets send out. Environment go to site administration > messaging enable emailbulkmessaging setting Test #1 go to a course enrol some students go to participants select some users use with selected users... menu and choose send an email write a subject and a message check that emails have been sent write a new email and check carbon copy case check that you have received this email too Test #2 go to site administration > users > bulk user actions select some users use with selected users... menu and choose send an email write a subject and a message check that emails have been sent write a new email and check carbon copy case check that you have received this email too Environment go to site administration > messaging disable emailbulkmessaging setting Test #3 go to a course go to participants select some users use with selected users... menu check that send an email is not in menu Test #4 go to site administration > users > bulk user actions select some users use with selected users... menu check that send an email is not in menu