From 82c581f3a3811406667cd4d290fe53bf641d2207 Mon Sep 17 00:00:00 2001
From: Santiago Carmuega <santiago@carmuega.me>
Date: Thu, 10 Feb 2022 19:06:03 -0300
Subject: [PATCH] fix(primitives): Probe old shelley blocks correctly (#46)

---
 pallas-primitives/src/probing.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pallas-primitives/src/probing.rs b/pallas-primitives/src/probing.rs
index 8065588..9d8cc27 100644
--- a/pallas-primitives/src/probing.rs
+++ b/pallas-primitives/src/probing.rs
@@ -26,6 +26,7 @@ pub fn probe_block_cbor(cbor: &[u8]) -> BlockInference {
 
     match tokenizer.next() {
         Some(Ok(Token::Array(3))) => BlockInference::Byron,
+        Some(Ok(Token::Array(4))) => BlockInference::Shelley,
         Some(Ok(Token::Array(5))) => BlockInference::Shelley,
         _ => BlockInference::Inconclusive,
     }