melib: keep old_hash in Collection temporarily

When renaming envelopes, keep old_hash in collection until we receive an
EnvelopeRename event in ui

1 files changed, 1 insertions, 1 deletions

diff --git a/melib/src/mailbox/backends/maildir.rs b/melib/src/mailbox/backends/maildir.rs
index 6cf11f36..4f7f0e2c 100644
--- a/melib/src/mailbox/backends/maildir.rs
+++ b/melib/src/mailbox/backends/maildir.rs
@@ -166,7 +166,7 @@ impl<'a> BackendOp for MaildirOp {
         let hash_index = self.hash_index.clone();
         let mut map = hash_index.lock().unwrap();
         let map = map.entry(self.folder_hash).or_default();
-        map.remove(&old_hash);
+        map.insert(old_hash, new_name.clone());
         map.insert(new_hash, new_name);
         Ok(())
     }