Steps to reproduce my problem:

1. Using GIT for SCM and Jenkins is set up to trigger build on SCM change
2. Master branch is building fine and all tests are passing
3. Create new branch from master
4. Break something so build fails and push to the new branch
5. Build is triggered in Jenkins by SCM change (but it says "No changes")

Expected result is that email-ext plugin sends notification of build failure to the person who first pushed to the new branch. But actually no e-mail is sent and the log says:

Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any
An attempt to send an e-mail to empty list of recipients, ignored.
Finished: FAILURE

The "Failure - Any" trigger has Developers and Culprits set under "Send To". When a second commit is made to the new branch by the same person, the trigger works fine - it finds the e-mail address of the culprit and sends the e-mail.