Hotfix of problem with class name duplication

```groovy
- for text in ["text1", "text2"]
  .test= text
```

Expected:
```html
 <div class='test'>text1</div>

 <div class='test'>text2</div>
```

Actual:
```html
 <div class='test test'>text1</div>

 <div class='test test'>text2</div>
```