pallet_revive: use real storage when building the eth genesis block

prdoc/pr_10225.prdoc

@@ -0,0 +1,9 @@
+title: "pallet_revive: use real storage when building the eth genesis block"
+doc:
+- audience: Runtime Dev
+  description: |-
+    When building the eth genesis block, query the real storage items that store the timestamp and block number instead of using the zeroed items.
+    If the chainspec does not customise these, they will remain zeroed.
+crates: 
+- name: pallet-revive
+  bump: patch

substrate/frame/revive/src/lib.rs

@@ -822,10 +822,11 @@ pub mod pallet {
 			// Build genesis block
 			block_storage::on_finalize_build_eth_block::<T>(
 				H160::zero(),
-				U256::zero(),
+				frame_system::Pallet::<T>::block_number().into(),
 				Pallet::<T>::evm_base_fee(),
 				Pallet::<T>::evm_block_gas_limit(),
-				U256::zero(),
+				// Eth uses timestamps in seconds
+				(T::Time::now() / 1000u32.into()).into(),
 			);
 
 			// Set debug settings.