Wrong gas estimates for sending ether during contract create

[matevz]

SUMMARY

Passing some ethers along the contract create transaction (e.g. https://github.com/oasisprotocol/demo-quiz/blob/3c6c15038f75fc96bf706a7a0d5ecdbca3b6f46d/backend/test/Quiz.ts#L9-L11) fails with out of gas error on sapphire networks:

• encrypted contract deploy tx: https://explorer.oasis.io/testnet/sapphire/tx/0xcbcadc8cd420bd665c73a2bb17cb0adaac13fd645ef155b133e3eb13361b3370
• unencrypted contract deploy tx: https://explorer.oasis.io/testnet/sapphire/tx/0xb64b580c14fd01faecb36881ad93c5e48d821811866e16e0813738c7ac0329e0

Hardcoding the gas limit to 10M worked:

• https://explorer.oasis.io/testnet/sapphire/tx/0xbe9f9fdaf2bd1d10caec4127c64d9b5a2a1e734824355cc9c0ef522b794f4d02
• https://explorer.oasis.io/testnet/sapphire/tx/0xe57d56a55e5b37137c40d1ec5626bff33df7517cad1d88562664b3d03344ebdf

Also, not sending any ethers along estimates fine:

• https://explorer.oasis.io/testnet/sapphire/tx/0x0d577edaab215d188bd5b08c00f2a4137bc161b4cd411ab3cc3bc660459f1a1a

Works fine on emerald and hardhat node.

ISSUE TYPE

• Bug Report

STEPS TO REPRODUCE

Run sapphire-localnet:

docker run -it -p8545:8545 -p8546:8546 ghcr.io/oasisprotocol/sapphire-localnet -test-mnemonic

Check out https://github.com/oasisprotocol/demo-quiz/ and do

cd backend
pnpm test -- --network sapphire-localnet

ACTUAL RESULTS

Contract deployment fails.

EXPECTED RESULTS

Contract should be deployed and funded.