Ensure content exists

lib/custom_wizard/builder.rb

@@ -257,7 +257,8 @@ class CustomWizard::Builder
         }
       ).perform
       
-      if content && content[:type] == 'association'
+      if content.present?          
+        if content[:type] == 'association'
           content[:result] = content[:result].map do |item|
             { 
               id: item[:key],
@@ -268,6 +269,7 @@ class CustomWizard::Builder
         
         params[:content] = content[:result]
       end
+    end
         
     field = step.add_field(params)
   end