issue/2415: Fix ItemsComponentModel inheritance chain #2416
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#2415
QuestionModel.extend
from modifyingItemsComponentModel.prototype.constructor
which was causingQuestionModel
to appear in the inheritance chain ofItemsComponentModel
. The process of blendingQuestionModel
andItemsComponentModel
now takes only the own properties fromItemsComponentModel.prototype
, minus theconstructor
function and brings them into a blended class first.(The
constructor
function is assigned by Backbone as an enumerable property as part of the.extend
process.)