fix: check hash value of sealed headers to prevent incomplete headers

crates/bsc/engine/src/task.rs

@@ -267,6 +267,21 @@ impl<
                 if !is_valid_header {
                     continue
                 };
+                // check if the header is the same as the block hash
+                // that probably means the block is not sealed yet
+                let block_hash = match info.block_hash {
+                    BlockHashOrNumber::Hash(hash) => hash,
+                    BlockHashOrNumber::Number(number) => {
+                        // trigger by the interval tick, can only trust the number
+                        if number != sealed_header.number {
+                            continue;
+                        }
+                        sealed_header.hash()
+                    }
+                };
+                if sealed_header.hash() != block_hash {
+                    continue;
+                }
 
                 let mut disconnected_headers = Vec::new();
                 disconnected_headers.push(sealed_header.clone());