Symptoms

When using the "Clear" method on a view, it does not appear that the underlying value for a picker control is actually being cleared, but reset to 0. This value is not updated when the control is changed.
 

Diagnoses

This behavior is a bug occurring when the picker control is the parent control used for filtering the values of another control.

 

Resolution

A bug has been logged against the behavior. The workaround is to use a "Transfer data" action instead of the "Clear" method, and then check the boxes for the picker control so that an empty value is transferred to it.