Rerun option only reruns temp file

Clicking the Rerun option causes Ace to rerun on the temp folder and data it created, not the original file I selected to validate. As a result, no fixes are reflected in the new report. You have to start a new evaluation again.

For example, here's the console output from the first run:

```
Running Ace on C:\epubs\accessible_epub_3.epub
Ace check complete
Loaded report C:\Users\MATTGA~1\AppData\Local\Temp\tmp-14784NiPiG87A8nHF\accessible_epub_3\report.json
```

And here's what rerun triggers:

```
Running Ace on C:\Users\MATTGA~1\AppData\Local\Temp\tmp-14784NiPiG87A8nHF\accessible_epub_3\_unzipped_EPUB_
Ace check complete
Loaded report C:\Users\MATTGA~1\AppData\Local\Temp\tmp-14784NiPiG87A8nHF\accessible_epub_3\report.json
```