[fix] bc: do not request fork blocks where current block is genesis

lib/modules/blockchain/blockchain/src/requests/sent.rs

@@ -49,6 +49,7 @@ pub fn request_fork_blocks(bc: &mut BlockchainModule, now: SystemTime) {
         bc.last_request_fork_blocks = now;
         // Request all blocks in fork window size
         if let Some(currency_params) = bc.currency_params {
+            if bc.current_blockstamp.id > BlockNumber(0) {
                 let fork_window_size = currency_params.fork_window_size as u32;
                 let from = if bc.current_blockstamp.id.0 > fork_window_size {
                     BlockNumber(bc.current_blockstamp.id.0 - fork_window_size)
@@ -56,13 +57,15 @@ pub fn request_fork_blocks(bc: &mut BlockchainModule, now: SystemTime) {
                     BlockNumber(0)
                 };
                 let to = bc.current_blockstamp.id;
-            let new_pending_network_requests = dunp::queries::request_blocks_from_to(bc, from, to);
+                let new_pending_network_requests =
+                    dunp::queries::request_blocks_from_to(bc, from, to);
                 for (new_req_id, new_req) in new_pending_network_requests {
                     bc.pending_network_requests.insert(new_req_id, new_req);
                 }
             }
         }
     }
+}
 
 pub fn request_next_main_blocks(bc: &mut BlockchainModule, now: SystemTime) {
     // Choose frequency