In StagingView do not update component on double-click of file path
In StagingView do not update component on double-click of file path

Re-rendering was causing this.props.didSelectFilePatch to get called
with a file that was just staged/unstaged. Therefore
Repository.prototype.getFilePatchForPath threw an error when the file
diff wasn't found.

atom/github,atom/github,atom/github