Weird challenges from new variadic challenge generation code

[codygunton]

The recent transcript work #248 seems to be malfunctioning . @ledwards2225 encountered the following impossibly-unlikely hash values for the circuit in StandardRelationCorrectness.

beta =  0x12999738e15a26e3502626ffe3d5116600000000000000000000000000000000
gamma = 0x2123cbc714cbca7a4652089a9de0f8f6d7cc17b786468f6ebc1e0a6c0fffffff
alpha = 0x140ff61b8ecdabbd1ca15b3eeb7488bfd7cc17b786468f6ebc1e0a6c0fffffff

[codygunton]

Closed by AztecProtocol/aztec-packages#2628