This is NOT solved. Just updated to the 5.1.7.1 three months later to this one-word patch has not been applied to the live code…after a customer received 150 duplicate emails from our site. So though the problem is “solved” the code is not fixed.
Why don’t you incorporate this one-word fix (posted above) into the code? If you would share the githib repo with @haroldkyle I would be happy to submit a pull request.
