aapl_name_mangling changes how file names are read-from and written-to disk. User should be allowed to change this on share creation without a warning. But a warning should be raised when user tries to change after share creation.
Warning should state something along the lines of "This parameter alters how file names are read from and written to storage. Changes to this paramater after data has already been written may impact ability to access or delete files containing mangled characters."