105.3.If an indemnity referred to in section 105.1 or 105.2 is reduced or cancelled and, under section 363 of the Act respecting industrial accidents and occupational diseases (chapter A-3.001) or section 83.51 or 83.52 of the Automobile Insurance Act (chapter A-25), the benefits already paid to the contributor are not recoverable, sections 105.1 and 105.2 apply as though the indemnity had not been reduced or cancelled.