User can change password after entering incorrect current password in profile

Steps to reproduce:
1. Log in
2. Go to profile and click 'Edit profile'
3. Enter incorrect current password and valid data in 'New password', 'Confirm new password'
4. Click 'Save changes'

Actual result: Password was changed. Any errors wasn't occured.

Expected result: Password shoudn't be changed. Error 'Incorrect current password' should be occured.