special meaning of &&

I found a kinda strange behavior for "&&" in code attachment
here it is:
I include an attachment like this
// !code _attachments/car_categories.js
in view.
after push view looks like this:

```
case \"test\":\n ret = 1 // !code _attachments/car_categories.js // !code _attachments/car_categories.js 2 || 3;\
```

while in attachment this line is:

```
case "test":
ret = 1 && 2 || 3;
```

Reproduce the issue using the view's `// !code _attachments/car_categories.js` directive and the `_attachments/car_categories.js` content shown. Trace the code-attachment processing entry point to determine why `&&` changes the generated view, then verify that the generated output preserves the attachment expression.

Written by the indexing model from the issue text.