[FAB-10949] fix race in TestResubmission
[FAB-10949] fix race in TestResubmission

The test was beginning to marshal an object that had not been fully
unmarshaled from the wire.

Change-Id: I6f6b019405197d556459f26e1637cfa03e2dc893
Signed-off-by: Matthew Sykes <89c6e4c9c1046731a9c37abefc223a83de36a5d9@us.ibm.com>

manish-sethi/fabric-sidedb,stemlending/fabric,binhn/fabric,xixuejia/fabric,stemlending/fabric,jimthematrix/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,xixuejia/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,jimthematrix/fabric,stemlending/fabric,stemlending/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,muralisrini/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric,binhn/fabric,manish-sethi/fabric,manish-sethi/fabric-sidedb,xixuejia/fabric,hyperledger/fabric,hyperledger/fabric,binhn/fabric