Index: ext/rtree/rtree.c
==================================================================
--- ext/rtree/rtree.c
+++ ext/rtree/rtree.c
@@ -3196,10 +3196,11 @@
     , pRtree->zDb, pRtree->zName, zNewName 
     , pRtree->zDb, pRtree->zName, zNewName 
     , pRtree->zDb, pRtree->zName, zNewName
   );
   if( zSql ){
+    nodeBlobReset(pRtree);
     rc = sqlite3_exec(pRtree->db, zSql, 0, 0, 0);
     sqlite3_free(zSql);
   }
   return rc;
 }