Added test for multiple digests with single workitem committed to multiple digests
Added test for multiple digests with single workitem committed to multiple digests

S-50918

openAgile/CommitStream.Web,JogoShugh/CommitStream.Web,openAgile/CommitStream.Web,openAgile/CommitStream.Web,kunzimariano/IntegrationStream,kunzimariano/IntegrationStream,kunzimariano/IntegrationStream,kunzimariano/IntegrationStream,JogoShugh/CommitStream.Web,JogoShugh/CommitStream.Web,openAgile/CommitStream.Web,JogoShugh/CommitStream.Web