Fancybox and PSD (BB-7561)

In order to see this problem, create issue on any repository and attach PSD (Adobe Photoshop) file to that issue.

1. Page does not stop loading (i think fancybox tries to load PSD file, just like an image). Loading goes forever.
2. When you click on attached PSD file thumbnail, fancybox tries to open it, like if it was an image - but of course cannot open and says "The requested content cannot be loaded. Please try again later."
   Instead, when you click on PSD attachment thumbnail, new tab should open with download dialog.

Using: Opera v12.14 on Windows 8. This problem has been there about 3 month I think. Today I decided to report, because this is annoying.