1 files changed, 3 insertions, 4 deletions
diff --git a/src/api/document.rs b/src/api/document.rs
index 20bbc7b..08fd21f 100644
--- a/src/api/document.rs
+++ b/src/api/document.rs
@@ -50,12 +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) = {
+        let (mut copy, epoch, heads) = {
             let replica = doc.blocking_read();
-            (replica.doc.clone(), replica.epoch)
+            (replica.doc.clone(), replica.epoch, replica.heads().to_vec())
         };
-        let heads = copy.get_heads();
-        (copy.save(), heads, epoch)
+        (crate::document::save(&mut copy), heads, epoch)
     })
     .await;
     let (bytes, heads, epoch) = match saved {