Unable to update the UI with bean value

I have a Use case where there is a drop down and an input text, check box. These two components has partial trigger on drop down.
Drop down has following attribute set:
autoSubmit="true", simple="true", immediate="true" and a value change listener.

and the two components has partial trigger on above drop down.

Now when change values in drop down, the value in components get changed for the first time and after that the values are stored in local cache and irrespective of value of bean the next time change on drop down, it shows value stored in local cache.

Is this a desired expectation ?

In our case we are unable to get the desired behavior and found that the workaround is to call reset value to all the components in our value change listener.