workflow_tests: preserve response of webservice assertion on test duplication (#88729)

wcs/workflow_tests.py

@@ -33,7 +33,7 @@ from wcs.qommon.form import (
 )
 from wcs.qommon.humantime import humanduration2seconds, seconds2humanduration, timewords
 from wcs.qommon.xml_storage import XmlStorableObject
-from wcs.testdef import TestError, WebserviceResponse
+from wcs.testdef import TestError
 from wcs.wf.backoffice_fields import SetBackofficeFieldRowWidget, SetBackofficeFieldsTableWidget
 from wcs.wf.profile import FieldNode
 
@@ -696,7 +696,7 @@ class AssertWebserviceCall(WorkflowTestAction):
 
     def perform(self, formdata):
         try:
-            webservice_response = [
+            response = [
                 x
                 for x in self.parent.testdef.get_webservice_responses()
                 if x.uuid == self.webservice_response_uuid