use Automerge as Document instead of AutoCommit

This allows a lot of operations to drop mut.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/api/document.rs b/src/api/document.rs
index 08fd21f..bc8c47e 100644
--- a/src/api/document.rs
+++ b/src/api/document.rs
@@ -50,11 +50,11 @@ pub(crate) async fn get_document(State(state): State<AppState>) -> Response {
     // Both steps take time proportional to the document: off the async threads, and
     // the lock only for the copy.
     let saved = tokio::task::spawn_blocking(move || {
-        let (mut copy, epoch, heads) = {
+        let (copy, epoch, heads) = {
             let replica = doc.blocking_read();
             (replica.doc.clone(), replica.epoch, replica.heads().to_vec())
         };
-        (crate::document::save(&mut copy), heads, epoch)
+        (crate::document::save(&copy), heads, epoch)
     })
     .await;
     let (bytes, heads, epoch) = match saved {