Panic mode causes text within code block to be encoded twice

The output of this code:

```
Configuration CONFIGURATION = Configuration.builder().enablePanicMode().build();
String result = Processor.process("`<p>My code</p>`", CONFIGURATION);
```

is:

```
<p><code>&amp;lt;p&gt;My code&amp;lt;/p&gt;</code></p>
```
