How do I prevent search terms from being copied between applications? If I have a search field open in Xcode and Safari at the same time, switching between the apps will copy the search term from one app to the other.

To reproduce this:


Open a webpage in Safari, and press Cmd-F to search the page, but don't type anything
Go to the Find Navigator in Xcode, and type "xcodesearch"
Use the app switcher to go to Safari


"xcodesearch" ends up in Safari's Find search field. Is there a setting that controls this? I don't want this to happen.

OS X 10.8.4, MacBook Air
To give you an answer the best I can with the research I've done. This is a relatively new addition in the OS. If I am not mistaken since 10.8 and what happened is Apple changed the Helper daemon.

I do not know of a way to configure the helperd parameters. My recommendation is to give Apple feedback via http://apple.com/feedback/ and ask that they give the ability to toggle it or remove it all together.

Additionally ask the mad scientists here to include the functionality 
http://www.bresink.com/osx/TinkerTool.html