36. When breach of warranty excused.- (1) Non- compliance with a warranty is excused when by reason of a change of circumstances, the warranty ceases to be applicable to the circumstances of the contract, or when compliance with the warranty is rendered unlawful by any subsequent law. (2) Where a warranty is broken, the assured cannot avail himself of the defence that the breach has been remedied, and the warranty complied with, before loss. (3) A breach of warranty may be waived by the insurer. | 
