From 5d968b7c40bfd4344fd543e0513204c5d17fe291 Mon Sep 17 00:00:00 2001
From: Manos Pitsidianakis <el13635@mail.ntua.gr>
Date: Sun, 11 Oct 2020 16:51:49 +0300
Subject: [PATCH] imap: fix out of bounds panic on receive EXPUNGE

Closes #82
---
 melib/src/backends/imap/untagged.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/melib/src/backends/imap/untagged.rs b/melib/src/backends/imap/untagged.rs
index 536b18b3..27fcf570 100644
--- a/melib/src/backends/imap/untagged.rs
+++ b/melib/src/backends/imap/untagged.rs
@@ -95,7 +95,7 @@ impl ImapConnection {
                     .unwrap()
                     .entry(mailbox_hash)
                     .or_default()
-                    .remove(n.try_into().unwrap());
+                    .remove(TryInto::<usize>::try_into(n).unwrap().saturating_sub(1));
                 debug!("expunge {}, UID = {}", n, deleted_uid);
                 let deleted_hash: crate::email::EnvelopeHash = match self
                     .uid_store