ivaynberg/select2 — pull request #2225 by davidfstr (2014-04-01 21:29:30+00:00)
Title: Allow an empty string to be used as the placeholder title.

In select2 3.3.1 it was possible to use '' as a placeholder title. There is a bug in select2 3.4.6 that prevents this. Patch attached.

Test HTML page: https://gist.github.com/davidfstr/ae14cd13de9395018377