1 files changed, 5 insertions, 3 deletions
diff --git a/db/update.cpp b/db/update.cpp
index d4a038b..e178e0f 100644
--- a/db/update.cpp
+++ b/db/update.cpp
@@ -517,10 +517,12 @@ namespace mongo {
         DEBUGUPDATE( "\t\t createNewFromMods root: " << root );
         BSONObjIteratorSorted es( obj );
         BSONElement e = es.next();
-
+        
         ModStateHolder::iterator m = _mods.lower_bound( root );
-        ModStateHolder::iterator mend = _mods.lower_bound( root + '{' );
-
+        StringBuilder buf(root.size() + 2 );
+        buf << root << (char)255;
+        ModStateHolder::iterator mend = _mods.lower_bound( buf.str() );
+        
         set<string> onedownseen;
         
         while ( e.type() && m != mend ){