Transformation raw not working with other parameters

[ChrisMCy]

Imagekit crashes with following example code, since the variable 'i' is used in 2 nested loops:

url.py :

    @staticmethod
    def transformation_to_str(transformation):
        """
        creates transformation_position string for url from
        transformation_position dictionary
        """
        if not isinstance(transformation, list):
            return ""
        parsed_transforms = []
        for i in range(len(transformation)):
            parsed_transform_step = []
            for key in transformation[i]:
                transform_key = SUPPORTED_TRANS.get(key, "")
                if not transform_key:
                    transform_key = key
                if transformation[i][key] == "-":
                    parsed_transform_step.append(transform_key)
                else:
                    value = transformation[i][key]
                    if isinstance(value, bool):
                        value = str(value).lower()
                    if transform_key == "oi" or transform_key == "di":
                        value = value.strip("/")
                        value = value.replace("/", "@@")
                    if transform_key == "raw":
                        for i in value.split(","):  # HERE THE VALUE I IS OVERRIDDEN TO 'f-auto' AND WILL CRASH THE OUTTER LOOP
                            parsed_transform_step.append(i)
                    else:
                        parsed_transform_step.append(
                            "{}{}{}".format(
                                transform_key,
                                Default.TRANSFORM_KEY_VALUE_DELIMITER.value,
                                value,
                            )
                        )

            parsed_transforms.append(
                Default.TRANSFORM_DELIMITER.value.join(parsed_transform_step)
            )

        return Default.CHAIN_TRANSFORM_DELIMITER.value.join(parsed_transforms)

Example code to crash imagekit:

transformation = {}
transformation["raw"] = "f-auto" # If this is not given last, it will crash the imagekit library
if width is not None: transformation["width"] = width
if height is not None: transformation["height"] = height
# transformation["raw"] = file_type

imagekit_url = self._imagekit_client.url({
    "url_endpoint": self._imagekit_base_url,
    "path": f"/{file.file_name}",
    "transformation": [
        transformation
    ],
    "signed": True,
    "expire_seconds": expires_in,
    "query_parameters": {
        "ik-attachment": "true" if content_disposition == EnumContentDisposition.attachment else "false"  # This is not fancy too since you need to pass strings instead of bools.
    },
})

[imagekitio]

Fixed in version 3.0.2