removed bug

[bitliner]

#1840

[petebacondarwin]

@bitliner: Thanks for looking into this.
Can you have a good read through the contribution guidelines: https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md
In particular, you need to sign the CLA, write unit tests that demonstrate the bug before you fix it and also follow the commit message guidelines.

[pkozlowski-opensource]

@bitliner we absolutely need tests before this pull request can be considered for merging. Going to close this one for now, please open it when you've got tests ready.