ACP2E-3076: Error when deleting bundle options

Author: aplapana

app/code/Magento/Bundle/view/adminhtml/web/js/components/bundle-dynamic-rows.js

@@ -55,7 +55,7 @@ define([
                 this.source.set(path, optionBaseData);
                 this.source.set(path + '.bundle_button_proxy', []);
                 this.source.set(path + '.bundle_selections', []);
-                this.removeBundleItemsFromOption(idx);
+                this.removeBundleItemsFromOption(idx); // would be best to remove the entire html, but see first if remove from data works
                 _.each(rec['bundle_selections'], function (obj, index) {
                     this.source.set(path + '.bundle_button_proxy' + '.' + index, rec['bundle_button_proxy'][index]);
                     this.source.set(path + '.bundle_selections' + '.' + index, obj);
@@ -71,15 +71,8 @@ define([
          * @param {Number|String} index - element index
          */
         removeBundleItemsFromOption: function (index) {
-            var bundleSelections = registry.get(this.name + '.' + index + '.' + this.bundleSelectionsName),
-                bundleSelectionsLength = (bundleSelections.elems() || []).length,
-                i;
-
-            if (bundleSelectionsLength) {
-                for (i = 0; i < bundleSelectionsLength; i++) {
-                    bundleSelections.elems()[0].destroy();
-                }
-            }
+            let bundleSelections = registry.get(this.name + '.' + index + '.' + this.bundleSelectionsName);
+            bundleSelections.destroyChildren();
         },
 
         /**

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

@@ -655,7 +655,10 @@ define([
 
             startIndex = page || this.startIndex;
 
-            return dataRecord.slice(startIndex, this.startIndex + parseInt(this.pageSize, 10));
+            if (dataRecord.length) {
+                return dataRecord.slice(startIndex, this.startIndex + parseInt(this.pageSize, 10));
+            }
+            return [];
         },
 
         /**