Avoid accidentally skipping blocks when switching to live sync (#363)

Author: dknopik

anchor/eth/src/sync.rs

@@ -668,7 +668,9 @@ impl SsvEventSyncer {
 
                 // If the relevant block was already processed, do not process it again. This can
                 // happen if `block_header.number` was seen before due to a reorg.
-                if relevant_block <= self.event_processor.db.state().get_last_processed_block() {
+                let last_processed_block =
+                    self.event_processor.db.state().get_last_processed_block();
+                if relevant_block <= last_processed_block {
                     debug!(
                         block_number = block_header.number,
                         relevant_block, "Already synced block - likely reorg"
@@ -687,7 +689,12 @@ impl SsvEventSyncer {
                 );
 
                 let mut logs = self
-                    .fetch_logs(relevant_block, relevant_block, contract_address, SSV_EVENTS)
+                    .fetch_logs(
+                        last_processed_block + 1,
+                        relevant_block,
+                        contract_address,
+                        SSV_EVENTS,
+                    )
                     .await?;
 
                 self.set_block_timestamps(&mut logs).await?;