Delegated by problem

Question

I am attempting to write a workflow that will send out an automated email whenever an activity is delegated(either created with a delegated by, or the delegated by field changes).
Now, with this, there is no direct problem, save the fact that the workflows do not seem to acurately depict the status of the delegated by field. To test this I created an email that would send the following data on a modification:
[<DelegatedBy>]
PRE('<DelegatedBy>']
IfNull(PRE('<DelegatedBy>'),"Invalid")
[<DelegatedById>]
PRE('<DelegatedById>')
IfNull(PRE('<DelegatedById>'),"Invalid"))
I changed the delegated by field from USER-A to USER-B, here are the results
USER-A
Invalid
ID of USER-B
ID of USER-A
ID of USER-A
Now, this seems to be a little contradictory, unless I'm missing something - the row ID of the user is correct, but the values of names are off.
The workflow condition simply checks for [<DelegatedBy>]<>IfNull(PRE('<DelegatedBy>'),"Invalid")
Update: I tested with modifying a field OTHER than the delegated by field, and I still get an email. Here is the workflow rule verbatim: [<Type>]<>LookupValue("TODO_TYPE", "Referral") AND [<DelegatedBy>]<>IfNull(PRE('<DelegatedBy>'),"Invalid")
Message was edited by:
user635035
I also have a workflow triggering off a new delegated activity with the workflow rule checking [<DelegatedBy>] IS NOT NULL. Upon testing, this sends out an email whenever an activity is created, whether the delegated by is null or not.
Message was edited by:
user635035

Answer 1

[<DelegatedBy>] and [<Owner>] fields are joined fields. The values are not available to the parent object when you save a record.
[<DelegatedById>] and [<OwnerId>] field values are available immediately.