Skip invalid early proposal

[shawn-zil]

On an API node, the pending block only gets updated when manually triggered by an appropriate call. A new transaction is validated against the state in the pending block. So, stale state is used to validate transactions upon submission. This PR ignores the pending block and always checks against the present state.

This issue surfaced on devnet because it does not get much traffic and the pending block does not get updated regularly.

[github-actions]

Bencher Report

Branch	shawn/3596/fix-early-proposal
Testbed	self-hosted

Click to view all benchmark results

Benchmark	Latency	Benchmark Result milliseconds (ms) (Result Δ%)	Upper Boundary milliseconds (ms) (Limit %)
full-blocks-erc20-transfers/full-blocks-erc20-transfers	📈 view plot 🚷 view threshold	609.88 ms (-2.10%) Baseline: 622.95 ms	680.55 ms (89.62%)
full-blocks-evm-transfers/full-blocks-evm-transfers	📈 view plot 🚷 view threshold	854.57 ms (-1.73%) Baseline: 869.61 ms	981.44 ms (87.07%)
full-blocks-giant-deploy/full-blocks-giant-deploy	📈 view plot 🚷 view threshold	5,099.90 ms (-1.47%) Baseline: 5,175.95 ms	5,635.71 ms (90.49%)
full-blocks-scilla-add/full-blocks-scilla-add	📈 view plot 🚷 view threshold	1,018.70 ms (-0.28%) Baseline: 1,021.58 ms	1,070.52 ms (95.16%)
full-blocks-scilla-load/full-blocks-scilla-load	📈 view plot 🚷 view threshold	5,639.30 ms (+1.87%) Baseline: 5,535.87 ms	6,627.27 ms (85.09%)
full-blocks-scilla-store/full-blocks-scilla-store	📈 view plot 🚷 view threshold	4,360.50 ms (+0.14%) Baseline: 4,354.32 ms	5,080.99 ms (85.82%)
full-blocks-zil-transfers/full-blocks-zil-transfers	📈 view plot 🚷 view threshold	1,046.10 ms (-3.54%) Baseline: 1,084.51 ms	1,357.49 ms (77.06%)
process-empty/process-empty	📈 view plot 🚷 view threshold	13.63 ms (+6.23%) Baseline: 12.83 ms	16.85 ms (80.91%)

🐰 View full continuous benchmarking report in Bencher