Requested For is not the same in the form and RITM

[aimughal]

For my catalog item i have two variables

Requester (Read only)

Requested for 

Both are auto populated with the logged in user, but Requested For can be changed to any other user.

this is done with 'javascript:gs.getUserID();' for the Default value in both variables

Now when create a request, and change the requested for, in the REQ and RITM it shows as the Requester value, rather than the selected value.

Any solutions to this please?

[Uncle Rob]

Verify that you're looking at and changing the fields you THINK you are.  View XML could be a big help here.
Put simply: one field simply can't show different values in different context. 

Open both the REQ and RITM XML and verify you don't have some OTHER "requestor / requested for" field that's confusing things.

https://youtu.be/MrY8koqOouQ