Going back while adding an email channel doesn't work

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Steps:

1. Add a new email channel
2. Add the name
3. Add an email
4. Go back
5. Click in the email type channel

Result: Either a blank email is added to the list of emails or what was written in the email field (before adding it) is not there.

We have to either reset the state while going back while adding a channel, or we have to fully remember what the user added.