[Problem] Test request update

Hi,

I have a problem with the test request auto-update when I change/remove a service of my WSDL.

My SOAPUI projects are made to be run with any version of my project. But when I remove a service of my WSDL it automaticaly remove the request from the test case. Exemple:

1- The wsdl version is N I have the services A-B-C
- I add in my test case (T) some request to test it ( TRa-TRb-TRc) and save my project
2- The wsdl version is N+1 I have the services A-B-C and a new service D
- I keep the test case T and add a request test TRd and same my project to keep the backwards compatibility of my test
3- We have a problem on the version N of the WSDL so I try to test it
- I load the WSDL N and the test case T (with TRa-TRb-TRc-TRd). But When I load the WSDL N it remove the test request D because it doesn't contain the service D. So If I change my test case and save it, It wouldn't test the D service

My questioin is: can I avoid this automatic update of my test case ?

Thanks for having read my problem and excuse me for my bad english