Parameterized Data pages are initiating with NULL value after upgrade
We have upgraded from Pega 7.1.8 to 7.3.1
After upgrading, if we open any existing work object we are facing issue with Data pages which have input parameters as required option are initiating with null even though there is a value present in the input parameter.
We could observe there is a pagegroup property pzAutoPopulatedKeys present with out any pages in it.
In case of new work object this pzAutoPopulatedKeys contains one page with proper values (input parameter name and value)
In 7.1.8, this pzAutoPopulatedKeys itself is not existed. So because of this, when we upgrade to 7.3.1, this pagegroup is populating with null initially.
We are looking for some solution to handle this situation in production environment. Please provide some suggestions?