initWithFrame not called, but awakeFromNib is

#import <Cocoa/Cocoa.h>

@interface OutlineViewSubclass : NSOutlineView {

}

@end

#import "OutlineViewSubclass.h"

@implementation OutlineViewSubclass

- (id)initWithFrame:(NSRect)frame
{
	self = [super initWithFrame:frame];
	printf("debug An");
	return self;
}

- (void)awakeFromNib
{
	printf("debug Bn");
}

@end

debug B