If an action is commenced under the provisions of this chapter to determine the validity of any contract or proposed contract, and the contract has not been signed, the contractor shall not be obligated to sign the same until a judgment sustaining the validity of the proceedings and the proposed contract has become final. If the contractor has signed and executed the contract, he shall not be obligated to begin work until a judgment sustaining the validity of the proceedings and the contract has become final. If a judgment is entered holding the contract invalid, the contractor shall be discharged and relieved of all obligation under the contract, and he and
his sureties shall be discharged and relieved of all obligation upon any bond required by law in connection with such contract.
20410
20411
20412
20413
20414
20415
20416
20417
20418
20419
20420
20421
20422
20423
20424
20425
20426
20427
20428
20429
20430
20431
20432
20433
20434
20435
20436
20436.5
20437
20438
20439
20440
20441
20442
20443
20444
20445
20446
20447
20448
20449
20450
20451
20452
20453
20454
20455
20456
20457
20458
20459
20460
20461
20462
20463
20464
20411
20412
20413
20414
20415
20416
20417
20418
20419
20420
20421
20422
20423
20424
20425
20426
20427
20428
20429
20430
20431
20432
20433
20434
20435
20436
20436.5
20437
20438
20439
20440
20441
20442
20443
20444
20445
20446
20447
20448
20449
20450
20451
20452
20453
20454
20455
20456
20457
20458
20459
20460
20461
20462
20463
20464