The goal of your commit is to address an issue encountered during validation, specifically related to the save_dir argument not utilizing the value passed to the function as intended. Instead, it utilizes an incremented path, leading to unexpected behavior.

This issue stems from the get_cfg function, where the condition if "save_dir" not in cfg: sets save_dir to None if it's not already defined in the configuration. As a result, the intended value of save_dir passed to the function is not used, leading to the undesired behavior during validation.