No need to start 2nd get_block_with_limit call with first block again

rpc/src/rpc.rs

@@ -643,8 +643,8 @@ impl JsonRpcRequestProcessor {
 
             let block_list = self
                 .get_blocks_with_limit(
-                    first_slot_in_epoch,
-                    partition_data.num_partitions + 1,
+                    first_slot_in_epoch + 1,
+                    partition_data.num_partitions,
                     config.commitment,
                 )
                 .await?;