TryGhost/Ghost — pull request #2049 by javorszky (2014-01-26 22:42:05+00:00)
Title: Guard against multiple signup events

Fixes #1841
* Added initial flag "no" for submission into Signup View
* Flag set to "yes" if submit button clicked
* Error thrown if flag is "yes", thus no subsequent submission sent to API
* Flag set to "no" if ajax returns with error

Resubmitted against 0.4-maintenance