MC-3993: Impossible add Slider on Page if it contains block with slider inside

 - fix test failures

Author: cspruiell

app/code/Magento/PageBuilder/view/base/web/js/content-type/map/appearance/default/widget.js

@@ -13,6 +13,8 @@ define([
             controls,
             mapOptions = {};
 
+        element = element[0];
+
         if (element.hasAttribute('data-locations')) {
 
             /**

dev/tests/js/jasmine/tests/app/code/Magento/PageBuilder/view/frontend/web/js/widget-initializer.test.js

@@ -48,10 +48,10 @@ define([
                 }
             };
 
-            widgetInitializer(data, el[0]);
+            widgetInitializer(data);
 
-            expect(mocks['mage/apply/main'].applyFor).toHaveBeenCalledWith(el[0], true, 'awesome');
-            expect(mocks['mage/apply/main'].applyFor).toHaveBeenCalledWith(el[0], true, 'cool');
+            expect(mocks['mage/apply/main'].applyFor).toHaveBeenCalledWith(el, true, 'awesome');
+            expect(mocks['mage/apply/main'].applyFor).toHaveBeenCalledWith(el, true, 'cool');
         });
     });
 });