updates: Use idmap.fwd

If there is no fwd id then don't send an update.  Bit odd, but whatever.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/updates.rs b/src/updates.rs
index 20a9e54a66e0b64863131541865ec1ee78b695de..b6aa823e96951e10715f5b852b23ac7bc4d4ef42 100644 (file)
--- a/src/updates.rs
+++ b/src/updates.rs
@@ -552,11 +552,13 @@ impl<'r> PrepareUpdatesBuffer<'r> {
             &mut gs.max_z, gpc, p, ops, &pri
           )?
         }
-        _ => Some(PreparedPieceUpdate {
-          // The piece is deleted, so we can't leak anything.
-          piece: gpl.idmap.fwd_or_insert(piece),
-          op: PieceUpdateOp::Delete(),
-        })
+        _ => gpl.idmap.fwd(piece).map(
+          |vpid| PreparedPieceUpdate {
+            // The piece is deleted, so we can't leak anything.
+            piece: vpid,
+            op: PieceUpdateOp::Delete(),
+          }
+        )
       };
 
       if let Some(op) = op {