in Dataset/JS/AngularCosmoPage/pageCtrl.js [379:398]
function updatePagePromise(data){
// Delete old tags
REST.contentTags.delete({ contentID: $scope.page.id }, deleteTagsPromise);
// Save page as a revision
REST.contentRevisions.save({
contentID: $scope.page.id,
title: $scope.page.title,
description: $scope.page.description,
header: Page.header,
subheader: Page.subheader,
featured: featured,
body: Page.body,
url: $scope.page.url,
type: $scope.page.type,
published: $scope.page.publish,
published_date: $scope.page.scheduleDate,
author: Users.id
}, savePageRevisionPromise);
}