shapelib: Fix a backward incompatible ifastsplits field

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

diff --git a/src/global.rs b/src/global.rs
index 1819851447bd8e38403bdbfb0bc9281d809be365..7ed39cc8665cd0abd5ea96fb654bba6d9f9a2989 100644 (file)
--- a/src/global.rs
+++ b/src/global.rs
@@ -253,7 +253,7 @@ struct InstanceSaveAuxiliary<RawTokenStr, PiecesLoadedRef, OccultIlksRef,
   pub links: Arc<LinksTable>,
   asset_url_key: AssetUrlKey,
   #[serde(default)] pub bundle_hashes: bundles::HashCache,
-  ifastsplits: IFastSplitsRef,
+  #[serde(default)] ifastsplits: IFastSplitsRef,
 }
 
 pub struct PrivateCaller(());