Index: src/vdbe.c
==================================================================
--- src/vdbe.c
+++ src/vdbe.c
@@ -2880,11 +2880,14 @@
   */
   assert( pData0<=pLast );
   if( zAffinity ){
     pRec = pData0;
     do{
-      applyAffinity(pRec++, *(zAffinity++), encoding);
+      applyAffinity(pRec, zAffinity[0], encoding);
+      REGISTER_TRACE((int)(pRec-aMem), pRec);
+      zAffinity++;
+      pRec++;
       assert( zAffinity[0]==0 || pRec<=pLast );
     }while( zAffinity[0] );
   }
 
 #ifdef SQLITE_ENABLE_NULL_TRIM