Webtest fix for failure

Fix for following webtest:

WebTest_Contribute_AddBatchesTest.testBatchAddMembership
WebTest_Event_PricesetMaxCountTest.testWithFieldCount
WebTest_Event_PricesetMaxCountTest.testWithoutFieldCount
WebTest_Pledge_StandaloneAddDeleteTest.testStandalonePledgeAddDelete
WebTest_Pledge_StandaloneAddTest.testStandalonePledgeAdd