BUGFIX: Fixed ajax refresh of SubsitesTreeDropdownField (see http://mingle.silverstripe.com/projects/air_nz_cms_enhancements/cards/205) (from r88936)
BUGFIX: Fixed ajax refresh of SubsitesTreeDropdownField (see http://mingle.silverstripe.com/projects/air_nz_cms_enhancements/cards/205) (from r88936)

mikenz/silverstripe-simplesubsites,mandrew/silverstripe-subsites,silverstripe/silverstripe-subsites,wernerkrauss/silverstripe-subsites,petpack/silverstripe-subsites,silverstripe/silverstripe-subsites,wernerkrauss/silverstripe-subsites,mikenz/silverstripe-simplesubsites,danaenz/silverstripe-subsites,danaenz/silverstripe-subsites,dnadesign/silverstripe-subsites,petpack/silverstripe-subsites,mandrew/silverstripe-subsites,dnadesign/silverstripe-subsites