Email address is not validated when updating user profile

On the view profile page /secure/ViewProfile.jspa it's possible to update your user profile /secure/EditProfile!default.jspa?username=admin to an invalid email address. See attached screenshots. !Screen Shot 2017-09-28 at 2.49.48 PM.png|thumbnail! !Screen Shot 2017-09-28 at 2.49.58...