Pega 7.2.2 - Filepath control does not provide file path and file name through hiddenFilePath parameter
We are upgrading one application from Pega 6.2 to Pega 7.2.2.
one section has a filepath control and the absolute file-path of client side can be found from hiddenFilePath parameter in 6.2.
According to this article : SA-23777, the filepath can be found from successfully in Pega 6.2 but this is no longer supported in pega 7.2 if the section has when condition on a layout. Unfortunately we have a when condition on layout and this cannot be refactored into a simple expression because to evaluate the when we need to refresh data from server.
So for such configuration what is the way to retrieve the absolute file name from client thorugh this control.
P.S. we tried using pzFilePathWithForm but this also has the same problem.
Please let us know if any one has any solution to this.