Fix a Checkbox bug, add example definition for testing

assets/scaffolds.sections.js

@@ -111,12 +111,18 @@
 				// Symphony adds a hidden field before a checkbox, so field
 				// may be an area with two elements. The first element will be a
 				// hidden field, the second will be a checkbox.
-				if(field.length == 2
-					&& $(field[1]).attr('type') == 'checkbox'
+				if(
+					field.length == 2 && $(field[1]).is(':checkbox')
 				) {
 					$(field[1]).attr('checked', (value !== 'no'));
 				}
 
+				// Not all Checkbox fields have the hidden field, so handle that
+				// case as well
+				else if(field.is(':checkbox')) {
+					field.attr('checked', (value !== 'no'));
+				}
+
 				// Input
 				else {
 					field.val(value);

examples/core.example.json

@@ -0,0 +1,19 @@
+{
+	"Date": {
+		"type": "date"
+	},
+	"Name": {
+		"type": "input"
+	},
+	"Categories": {
+		"type": "select",
+		"location": "main",
+		"static_options": "Example 1, Example 2",
+		"show_column": "no"
+	},
+	"Publish": {
+		"type": "checkbox",
+		"default_state": "yes",
+		"description": "Publish this entry?"
+	}
+}