Helpers::exportRules() skips empty branches

Author: dg

src/Forms/Helpers.php

@@ -112,6 +112,8 @@ public static function exportRules(Rules $rules)
 				];
 				if ($rule->branch->getToggles()) {
 					$item['toggle'] = $rule->branch->getToggles();
+				} elseif (!$item['rules']) {
+					continue;
 				}
 			} else {
 				$item = ['op' => ($rule->isNegative ? '~' : '') . $op, 'msg' => Validator::formatMessage($rule, FALSE)];

tests/Forms/Forms.renderer.1.expect

@@ -43,7 +43,7 @@
 <tr>
 	<th></th>
 
-	<td><label for="frm-send"><input type="checkbox" name="send" id="frm-send" data-nette-rules='[{"op":":equal","rules":[],"control":"send","arg":false},{"op":"~:equal","rules":[],"control":"send","toggle":{"sendBox":true},"arg":false}]' checked>Ship to address</label></td>
+	<td><label for="frm-send"><input type="checkbox" name="send" id="frm-send" data-nette-rules='[{"op":"~:equal","rules":[],"control":"send","toggle":{"sendBox":true},"arg":false}]' checked>Ship to address</label></td>
 </tr>
 </table>