From 43f89ef680fc5b75726cb77e8ee51074e485ca86 Mon Sep 17 00:00:00 2001
From: Manos Pitsidianakis <el13635@mail.ntua.gr>
Date: Thu, 4 Apr 2019 00:29:56 +0300
Subject: [PATCH] melib: fix crash in node_build(

---
 melib/src/mailbox/thread.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/melib/src/mailbox/thread.rs b/melib/src/mailbox/thread.rs
index ee9025193..78916e936 100644
--- a/melib/src/mailbox/thread.rs
+++ b/melib/src/mailbox/thread.rs
@@ -1338,7 +1338,9 @@ fn node_build(
         indentation + 1
     };
 
-    let mut has_unseen = !collection[&thread_nodes[idx].message.unwrap()].is_seen();
+    let mut has_unseen = if let Some(msg) = thread_nodes[idx].message {
+        !collection[&msg].is_seen()
+    } else { false };
     let mut child_vec: Vec<ThreadTree> = Vec::new();
 
     thread_nodes[idx].len = thread_nodes[idx].children.len();