return cosigned sth regardless of cosignature count

2 files changed, 1 insertions, 8 deletions

diff --git a/sth.go b/sth.go
index 30ba965..ee4dd2f 100644
--- a/sth.go
+++ b/sth.go
@@ -102,7 +102,7 @@ func (s *ActiveSthSource) Stable(_ context.Context) (*types.StItem, error) {
 func (s *ActiveSthSource) Cosigned(_ context.Context) (*types.StItem, error) {
 	s.mutex.RLock()
 	defer s.mutex.RUnlock()
-	if s.currCosth == nil || len(s.currCosth.CosignedTreeHeadV1.Cosignatures) == 0 {
+	if s.currCosth == nil {
 		return nil, fmt.Errorf("no cosigned sth available")
 	}
 	return s.currCosth, nil
diff --git a/sth_test.go b/sth_test.go
index a75ca5f..0942ea1 100644
--- a/sth_test.go
+++ b/sth_test.go
@@ -163,13 +163,6 @@ func TestCosigned(t *testing.T) {
 			wantErr:     true,
 		},
 		{
-			description: "invalid: no cosigned sth: nil signatures",
-			source: &ActiveSthSource{
-				currCosth: testdata.DefaultCosth(t, testdata.Ed25519VkLog, nil),
-			},
-			wantErr: true,
-		},
-		{
 			description: "valid",
 			source: &ActiveSthSource{
 				currCosth: testdata.DefaultCosth(t, testdata.Ed25519VkLog, [][32]byte{testdata.Ed25519VkWitness}),