aviator 短路模式在调试模式下失效

`@Test
public void testReject() {
String av = "let aa=nil;return aa !=nil && string.length(aa) > 0;";
Object obj = riskAviatorEvaluator.execute(av, new Context());
System.out.println("-------------" + GsonUtilWithToNumberPolicy.obj2jsonStr(obj));
System.out.println(RiskAviatorTraceEvaluator.newInstance().execute(av, new Context()));
}`
上面是执行的一段代码，输出结果如下：

可见在非调试模式下，执行结果false符合预期，但是在调试模式下会报空指针异常，看起来短路模式失效了，执行了string.length(aa)这个语句。想问一下是特地这样设计的么？原因是什么

Start with the testReject reproducer and compare riskAviatorEvaluator.execute(av, new Context()) with RiskAviatorTraceEvaluator.newInstance().execute(av, new Context()). Trace the debug evaluator's handling of the && expression and string.length(aa). Done means the debug path matches the non-debug short-circuit result without the null-pointer exception, with a regression test for this expression.

Written by the indexing model from the issue text.