Hi,
This sounds like a transaction problem..

So you have the following solutions :
* Use the Application-Release-Pending process.
* Use a command form with an escalation to achieve that.
The first solution can be difficult to implement if you don't know about the entire workflow and the consequences. So, perfer the second solution.
The detail of the second solution is :
* In the form A create a record in Change interface.
* Change interface create a record in Change.
* Change create a record in your command form.
...
* The escalation fires on your command form and modify the record in the form A.
* The workflow in form A create the tasks.
* The record in your command form is deleted.