fix problem with extra network saving images as previews losing generation info

    return result + 1

def save_image_with_geninfo(image, geninfo, filename, extension=None, existing_pnginfo=None):

def save_image_with_geninfo(image, geninfo, filename, extension=None, existing_pnginfo=None, pnginfo_section_name='parameters'):

    """

    Saves image to filename, including geninfo as text information for generation info.

    For PNG images, geninfo is added to existing pnginfo dictionary using the pnginfo_section_name argument as key.

    For JPG images, there's no dictionary and geninfo just replaces the EXIF description.

    """

    if extension is None:

        extension = os.path.splitext(filename)[1]

    image_format = Image.registered_extensions()[extension]

    if extension.lower() == '.png':

        existing_pnginfo = existing_pnginfo or {}

        if opts.enable_pnginfo:

            existing_pnginfo[pnginfo_section_name] = geninfo

        if opts.enable_pnginfo:

            pnginfo_data = PngImagePlugin.PngInfo()

            for k, v in (existing_pnginfo or {}).items():

        """

        temp_file_path = f"{filename_without_extension}.tmp"

        save_image_with_geninfo(image_to_save, info, temp_file_path, extension, params.pnginfo)

        save_image_with_geninfo(image_to_save, info, temp_file_path, extension, existing_pnginfo=params.pnginfo, pnginfo_section_name=pnginfo_section_name)

        os.replace(temp_file_path, filename_without_extension + extension)