rpcrt4: Even though FC_DEREFERENCE conformance is handled elsewhere in

ComputeConformanceOrVariance it is still necessary to set the count
variable to the value retrieved.

dlls/rpcrt4/ndr_marshall.c

@@ -489,12 +489,10 @@ PFORMAT_STRING ComputeConformanceOrVariance(
 
 done_conf_grab:
   switch (pFormat[1]) {
+  case RPC_FC_DEREFERENCE: /* already handled */
   case 0: /* no op */
     *pCount = data;
     break;
-  case RPC_FC_DEREFERENCE:
-    /* already handled */
-    break;
   case RPC_FC_ADD_1:
     *pCount = data + 1;
     break;