How to drag icon in Preview to a folder and copy instead of aliasing? After downloading a PDF, Preview automatically opens and I'm able to look at the file. Often times I want to move the file to somewhere other than Downloads.

In Mavericks I'm able to click on the title and choose a new location in the drop down under the Where: item as shown in the screenshot. 

If I already have a Finder window open to the folder where I want to move the file it would be faster to just drag the icon from the title bar to the Finder. However, the default behavior is to create an alias. I've tried using modifier keys to make this a copy operation instead of an alias but without success. 

Is there a trick to make this work or should I be submitting an enhancement request to Apple?
Hold down the alt (option) key before dropping the icon in the Finder. That copies it for me, and that's been standard behavior in the Finder forever.