Verify that secp256k1_ge_set_gej_zinv does not operate on infinity.#942

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real-or-random merged 2 commits intobitcoin-core:masterfrom

roconnor-blockstream:20210512_VERIFY_zinv

Dec 7, 2021

Commits on Dec 3, 2021

Verify that secp256k1_ge_set_gej_zinv does not operate on infinity.
roconnor-blockstream
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Comment and check a parameter for inf in secp256k1_ecmult_const.
roconnor-blockstream
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