system test errors cleared

Author: Dileepadari

administrator/components/com_content/tmpl/article/edit.php

@@ -183,6 +183,6 @@
     </div>
 </form>
 <?php echo LayoutHelper::render('joomla.workflow.graphmodal', [
-    'workflow_id' => $this->item->workflow_id,
+    'workflow_id' => isset($this->item->workflow_id) ? $this->item->workflow_id : null,
 ]);
 ?>

components/com_content/tmpl/form/edit.php

@@ -183,6 +183,6 @@
     </form>
 </div>
 <?php echo LayoutHelper::render('joomla.workflow.graphmodal', [
-    'workflow_id' => $this->item->workflow_id,
+    'workflow_id' => isset($this->item->workflow_id) ? $this->item->workflow_id : null,
 ]);
 ?>