MC-37069: Configurable Products with large quantities of children cannot be opened

Author: duhon

app/code/Magento/ConfigurableProduct/view/adminhtml/web/js/components/dynamic-rows-configurable.js

@@ -242,6 +242,11 @@ define([
             this.generateAssociatedProducts();
         },
 
+        /**
+         * Set initial property to records data
+         *
+         * @returns {Object} Chainable.
+         */
         setInitialProperty: function () {
             return this;
         },

app/code/Magento/Ui/view/base/web/js/dynamic-rows/dynamic-rows.js

@@ -1127,6 +1127,7 @@ define([
          */
         setDifferedFromDefault: function () {
             var recordData;
+
             if (this.default) {
                 recordData = utils.copy(this.recordData());
 

dev/tests/js/jasmine/tests/app/code/Magento/ConfigurableProduct/view/adminhtml/web/js/components/dynamic-rows-configurable.test.js

@@ -41,11 +41,9 @@ define([
                     })
                 };
 
-            model.getChildItems = jasmine.createSpy().and.returnValue($(''));
             model.source = sourceMock;
             model.processingUnionInsertData(mockData);
             expect(model.source.get).toHaveBeenCalled();
-            expect(model.getChildItems).toHaveBeenCalled();
             expect(expectedData[1].sku).toBe('Conf&-sdfs');
         });