How to stop file to open in NERDTree pane

[vivekkumar27june88]

Generally I focus on NERDTree, tries to find the file and didn't know where it is the tree.

So next I press Ctrl+P search for the file and hit enter.

But then the searched file opens in the NERDTree pane..... 

Question
Is there any way by which we can stop this from happening and instruct vim to use any other pane for opening file instead of using the NERDTree pane .

Thanks

[jondkinney]

This used to be the default. Only after doing a BundleUpdate am I now seeing this bug. Obviously we don't want to open a new buffer over the top of NERDTree...so something must be wrong. Not sure what yet, still digging into it. But this is bugging me quite a bit today!