store the new hash

patchset.Make.go

@@ -159,6 +159,7 @@ func (p *Patchset) addPatchFiles(repo *gitpb.Repo) error {
 		patch.Data = data
 		patch.parseData()
 		patch.StartHash = repo.DevelHash()
+		patch.NewHash = "na"
 		patch.RepoNamespace = repo.GetGoPath()
 		if p.Patches == nil {
 			p.Patches = new(Patches)

patchset.proto

@@ -16,6 +16,7 @@ message Patch {
         repeated string Files                   = 10; // the filenames this patch changes
         string comment                          = 11; // the git commit message (in patch form)
         string repoNamespace                    = 12; // the base repo git URL
+        string newHash     		        = 13; // new hash after git am
 }
 
 message Patches {			   // `autogenpb:marshal`