UIBezierPath Bug

gistfile1.m

+ (UIImage *)imageForCollageProxyWithType:(NSString *)collageType
                         highlightedIndex:(NSUInteger)highlightedIndex
                                fillColor:(UIColor *)fillColor
                     highlightedFillColor:(UIColor *)highlightedFillColor
                                     size:(CGSize)size {
    CGFloat scale = 2;
    
    size.height *= scale;
    size.width  *= scale;
    
    UIGraphicsBeginImageContextWithOptions(size, NO, 0.0);
    
    NSArray *frames = [HEYDAY.collagePhotoFrames framesForCollageType:collageType
                                                         boundingSize:size];
    
    if (frames.count > 1) {
        [frames enumerateObjectsUsingBlock:^(NSValue *rectValue, NSUInteger idx, BOOL *stop) {
            CGRect rect = rectValue.CGRectValue;
            
            if (idx == highlightedIndex) {
                [highlightedFillColor set];
            } else {
                [fillColor set];
            }
            
            UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect
                                                            cornerRadius:1*scale];
            [path fill];
        }];
    } else {
        if (0 == highlightedIndex) {
            [highlightedFillColor set];
        } else {
            [fillColor set];
        }
        CGRect rect = CGRectInset((CGRect){CGPointZero, size}, 2.0, 2.0);
        
        UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect
                                                        cornerRadius:1*scale];
        
        [path fill];
    }
    
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}