AmpersandJS/ampersand-sync — pull request #23 by tomasztunik (2014-11-06 06:27:29+00:00)
Title: Fixed bug where model ajaxConfig.beforeSend could be ignored

check for `xhrFields` on the `ajaxConfig` and override for `beforeSend` were overshadowing referencing beforeSend from the `ajaxConfig` on the params object and `beforeSend` was ignored if `xhrFields` was undefined