Fixes for various bugs under SerialScheduler

1 files changed, 4 insertions, 1 deletions

diff --git a/include/framework/structure/ExtensionStructure.h b/include/framework/structure/ExtensionStructure.h
index f5657af..80ec7b9 100644
--- a/include/framework/structure/ExtensionStructure.h
+++ b/include/framework/structure/ExtensionStructure.h
@@ -46,7 +46,8 @@ public:
      * Create a shallow copy of this extension structure. The copy will share references to the
      * same levels/shards as the original, but will have its own lists. As all of the shards are
      * immutable (with the exception of deletes), the copy can be restructured with merges, etc., 
-     * without affecting the original.
+     * without affecting the original. The copied structure will be returned with a reference
+     * count of 0; generally you will want to immediately call take_reference() on it.
      *
      * NOTE: When using tagged deletes, a delete of a record in the original structure will affect
      * the copy, so long as the copy retains a reference to the same shard as the original. This could
@@ -59,6 +60,8 @@ public:
             new_struct->m_levels.push_back(m_levels[i]->clone());
         }
 
+        new_struct->m_refcnt = 0;
+
         return new_struct;
     }