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Q: 

prevent a detail view from loading again on ipad?

I am using a split view controller and I am pushing views to the detail controller once a selection is made on my table view controller.

This works great except I can keep clicking the same choice over and over and it keeps getting added to my navigation controller stack so I end up with and endless stream of back buttons which is pretty lame.

How do I check the stack to see of the view already exists and either goto that view in the stack or prevent it from being added again?

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