As Ajax Smarty fetch to fix it?

Ajax script basket in simpla cms.
-Ajax'om sent a quantity of goods
-Put everything in php to change the session basket
-In response to the return pieces need to be replaced in the html

And all is good, but take using tpl which gives fetch is not correct.
The answer comes always, all the pieces correctly, but fetch(cart_purchases.tpl) moments from previous queries. As if not refreshed. The feeling that this template does not have time to now contain and odesabrody version. Reset the variable in which box the template did not help.

Changed server hosting did not help. On one everything worked properly only increased the delay of the script execution.

If you do the delay after the call to the template works properly.

How to make php or Smarty accurately loaded current, updated tpl?